Edgar Filing: ZIONS BANCORPORATION /UT/

Exhibit
Number

Description

Certification by Chief Executive Officer and Chief Financial Officer required by Sections 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 (15 U.S.C. 78m) and 18 U.S.C. Section 1350 (furnished herewith).

Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Consolidated Balance Sheets as of March 31, 2011, December 31, 2010, and March 31, 2010, (ii) the Consolidated Statements of Income for the three months ended March 31, 2011 and March 31, 2010 (iii) the Consolidated Statements of Changes in Shareholders’ Equity and Comprehensive Income for the three months ended March 31, 2011 and March 31, 2010, (iv) the Consolidated Statements of Cash Flows for the three months ended March 31, 2011 and March 31, 2010, and (v) the Notes to the Consolidated Financial Statements, tagged as blocks of text (furnished herewith).

Form 10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

x	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2011

¨	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

COMMISSION FILE NUMBER 001-12307

ZIONS BANCORPORATION

(Exact name of registrant as specified in its charter)


UTAH		87-0227400
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

ONE SOUTH MAIN, 15^TH FLOOR SALT LAKE CITY, UTAH		84133
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (801) 524-4787

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes x No ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes x No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer x Accelerated filer ¨ Non-accelerated filer ¨ Smaller reporting company ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ¨ No x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.


Common Stock, without par value, outstanding at April 29, 2011		183,824,938 shares

ZIONS BANCORPORATION AND SUBSIDIARIES

INDEX


		Page
PART I.	FINANCIAL INFORMATION

ITEM 1.	Financial Statements (Unaudited)

	Consolidated Balance Sheets		3

	Consolidated Statements of Income		4

	Consolidated Statements of Changes in Shareholders’ Equity and Comprehensive Income		5

	Consolidated Statements of Cash Flows		6

	Notes to Consolidated Financial Statements		7

ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		45

ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk		83

ITEM 4.	Controls and Procedures		83

PART II.	OTHER INFORMATION

ITEM 1.	Legal Proceedings		83

ITEM 1A.	Risk Factors		83

ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds		84

ITEM 6.	Exhibits		84

SIGNATURES			87

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS (Unaudited)

ZIONS BANCORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS


(In thousands, except share amounts)	March 31, 2011		December 31, 2010		March 31, 2010
	(Unaudited)				(Unaudited)

ASSETS
Cash and due from banks	$	949,140	$	924,126	$	1,045,391
Money market investments:
Interest-bearing deposits		4,689,323		4,576,008		3,410,211
Federal funds sold and security resell agreements		67,197		130,305		117,548
Investment securities:
Held-to-maturity, at adjusted cost (approximate fair value $758,169, $788,354, and $856,256)		820,636		840,642		902,902
Available-for-sale, at fair value		4,130,342		4,205,742		3,437,098
Trading account, at fair value		56,549		48,667		50,698

		5,007,527		5,095,051		4,390,698
Loans held for sale		195,055		206,286		171,892
Loans:
Loans and leases excluding FDIC-supported loans		35,753,638		35,896,395		37,784,853
FDIC-supported loans		912,881		971,377		1,320,737

		36,666,519		36,867,772		39,105,590
Less:
Unearned income and fees, net of related costs		120,725		120,341		131,555
Allowance for loan losses		1,349,800		1,440,341		1,581,577

Loans and leases, net of allowance		35,195,994		35,307,090		37,392,458

Other noninterest-bearing investments		858,958		858,367		909,601
Premises and equipment, net		721,487		720,985		707,387
Goodwill		1,015,161		1,015,161		1,015,161
Core deposit and other intangibles		82,199		87,898		106,839
Other real estate owned		268,876		299,577		414,237
Other assets		1,756,791		1,814,032		2,031,558

	$	50,807,708	$	51,034,886	$	51,712,981

LIABILITIES AND SHAREHOLDERS’ EQUITY
Deposits:
Noninterest-bearing demand	$	13,790,615	$	13,653,929	$	12,799,002
Interest-bearing:
Savings and NOW		6,494,013		6,362,138		5,978,536
Money market		14,874,507		15,090,833		16,667,011
Time under $100,000		1,859,005		1,941,211		2,306,101
Time $100,000 and over		2,085,487		2,232,238		2,697,261
Foreign		1,488,807		1,654,651		1,647,898

		40,592,434		40,935,000		42,095,809
Securities sold, not yet purchased		101,406		42,548		47,890
Federal funds purchased and security repurchase agreements		727,764		722,258		953,791
Other short-term borrowings		182,167		166,394		178,435
Long-term debt		1,913,083		1,942,622		2,016,461
Reserve for unfunded lending commitments		102,168		111,708		96,312
Other liabilities		444,099		467,142		467,371

Total liabilities		44,063,121		44,387,672		45,856,069

Shareholders’ equity:
Preferred stock, without par value, authorized 4,400,000 shares		2,162,399		2,056,672		1,532,323
Common stock, without par value; authorized 350,000,000 shares; issued and outstanding 183,854,486, 182,784,086, and 160,300,162		4,178,369		4,163,619		3,517,621
Retained earnings		904,247		889,284		1,220,439
Accumulated other comprehensive income (loss)		(499,163)		(461,296)		(428,177)

Controlling interest shareholders’ equity		6,745,852		6,648,279		5,842,206
Noncontrolling interests		(1,265)		(1,065)		14,706

Total shareholders’ equity		6,744,587		6,647,214		5,856,912

	$	50,807,708	$	51,034,886	$	51,712,981

See accompanying notes to consolidated financial statements.

ZIONS BANCORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

(Unaudited)


	Three Months Ended March 31,
(In thousands, except per share amounts)	2011		2010

Interest income:
Interest and fees on loans	$	518,157	$	547,636
Interest on money market investments		2,843		1,439
Interest on securities:
Held-to-maturity		8,664		7,893
Available-for-sale		22,276		22,692
Trading account		452		475

Total interest income		552,392		580,135

Interest expense:
Interest on deposits		36,484		56,076
Interest on short-term borrowings		2,180		3,067
Interest on long-term debt		89,872		65,692

Total interest expense		128,536		124,835

Net interest income		423,856		455,300
Provision for loan losses		60,000		265,565

Net interest income after provision for loan losses		363,856		189,735

Noninterest income:
Service charges and fees on deposit accounts		44,530		51,608
Other service charges, commissions and fees		41,685		39,042
Trust and wealth management income		6,754		7,609
Capital markets and foreign exchange		7,214		8,539
Dividends and other investment income		8,028		7,700
Loan sales and servicing income		6,013		6,432
Fair value and nonhedge derivative income		1,220		2,188
Equity securities gains (losses), net		897		(3,165)
Fixed income securities gains (losses), net		(59)		1,256
Impairment losses on investment securities:
Impairment losses on investment securities		(3,105)		(48,570)
Noncredit-related losses on securities not expected to be sold (recognized in other comprehensive income)		–		17,307

Net impairment losses on investment securities		(3,105)		(31,263)
Gain on subordinated debt exchange		–		14,471
Other		20,966		3,193

Total noninterest income		134,143		107,610

Noninterest expense:
Salaries and employee benefits		215,010		204,333
Occupancy, net		28,010		28,488
Furniture and equipment		25,662		24,996
Other real estate expense		24,167		32,648
Credit related expense		14,913		16,825
Provision for unfunded lending commitments		(9,540)		(20,133)
Legal and professional services		6,689		9,976
Advertising		6,911		6,374
FDIC premiums		24,101		24,210
Amortization of core deposit and other intangibles		5,701		6,577
Other		66,751		54,832

Total noninterest expense		408,375		389,126

Income (loss) before income taxes		89,624		(91,781)
Income taxes (benefit)		37,033		(28,644)

Net income (loss)		52,591		(63,137)
Net income (loss) applicable to noncontrolling interests		(226)		(2,927)

Net income (loss) applicable to controlling interest		52,817		(60,210)
Preferred stock dividends		(38,050)		(26,311)

Net earnings (loss) applicable to common shareholders	$	14,767	$	(86,521)

Weighted average common shares outstanding during the period:
Basic shares		181,707		151,073
Diluted shares		181,998		151,073

Net earnings (loss) per common share:
Basic	$	0.08	$	(0.57)
Diluted		0.08		(0.57)

See accompanying notes to consolidated financial statements.

ZIONS BANCORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY AND COMPREHENSIVE INCOME

(Unaudited)


(In thousands, except per share amounts)	Preferred stock		Common stock				Retained earnings		Accumulated other comprehensive income (loss)		Noncontrolling interests		Total shareholders’ equity
			Common stock
			Shares		Amount

Balance at December 31, 2010	$	2,056,672		182,784,086	$	4,163,619	$	889,284	$	(461,296)	$	(1,065)	$	6,647,214

Comprehensive income:
Net income (loss) for the period								52,817				(226)		52,591
Other comprehensive income (loss), net of tax:
Net realized and unrealized holding losses on investments										(31,788)
Reclassification for net losses on investments included in earnings										1,954
Accretion of securities with noncredit-related impairment losses not expected to be sold										26
Net unrealized losses on derivative instruments										(8,059)

Other comprehensive loss										(37,867)				(37,867)

Total comprehensive income														14,724
Subordinated debt converted to preferred stock		100,454				(14,605)								85,849
Issuance of common stock				1,067,540		25,048								25,048
Net activity under employee plans and related tax benefits				2,860		4,307								4,307
Dividends on preferred stock		5,273						(38,050)						(32,777)
Dividends on common stock, $0.01 per share								(1,824)						(1,824)
Change in deferred compensation								2,020						2,020
Other changes in noncontrolling interests												26		26

Balance at March 31, 2011	$	2,162,399		183,854,486	$	4,178,369	$	904,247	$	(499,163)	$	(1,265)	$	6,744,587


Balance at December 31, 2009	$	1,502,784		150,425,070	$	3,318,417	$	1,308,356	$	(436,899)	$	17,599	$	5,710,257
Comprehensive loss:
Net loss for the period								(60,210)				(2,927)		(63,137)
Other comprehensive income (loss), net of tax:
Net realized and unrealized holding gains on investments										10,565
Reclassification for net losses on investments included in earnings										18,521
Noncredit-related impairment losses on securities not expected to be sold										(10,687)
Accretion of securities with noncredit-related impairment losses not expected to be sold										39
Net unrealized losses on derivative instruments										(9,716)

Other comprehensive income										8,722				8,722

Total comprehensive loss														(54,415)
Subordinated debt converted to preferred stock		24,612				(3,578)								21,034
Subordinated debt exchanged for common stock				2,165,391		46,902								46,902
Issuance of common stock				7,741,740		149,908								149,908
Net activity under employee plans and related tax benefits				(32,039)		5,972								5,972
Dividends on preferred stock		4,927						(26,311)						(21,384)
Dividends on common stock, $0.01 per share								(1,498)						(1,498)
Change in deferred compensation								102						102
Other changes in noncontrolling interests												34		34

Balance at March 31, 2010	$	1,532,323		160,300,162	$	3,517,621	$	1,220,439	$	(428,177)	$	14,706	$	5,856,912

See accompanying notes to consolidated financial statements.

ZIONS BANCORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)


(In thousands)	Three Months Ended March 31,
	2011		2010

CASH FLOWS FROM OPERATING ACTIVITIES
Net income (loss) for the period	$	52,591	$	(63,137)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Net impairment losses on investment securities		3,105		31,263
Gain on subordinated debt exchange		–		(14,471)
Provision for credit losses		50,460		245,432
Depreciation and amortization		89,806		46,254
Deferred income tax expense (benefit)		53,790		(36,163)
Net increase in trading securities		(7,882)		(27,155)
Net decrease in loans held for sale		28,471		24,981
Net write-down of and losses from sales of other real estate owned		19,750		27,112
Change in other liabilities		(36,824)		336,775
Change in other assets		18,154		103,373
Other, net		(2,200)		(3,720)

Net cash provided by operating activities		269,221		670,544

CASH FLOWS FROM INVESTING ACTIVITIES
Net increase in short term investments		(50,207)		(2,796,254)
Proceeds from maturities and paydowns of investment securities held-to-maturity		29,108		26,651
Purchases of investment securities held-to-maturity		(5,493)		(22,884)
Proceeds from sales, maturities, and paydowns of investment securities available-for-sale		302,250		409,761
Purchases of investment securities available-for-sale		(279,886)		(196,548)
Proceeds from sales of loans and leases		1,082		35,163
Net loan and lease collections (originations)		(44,811)		788,877
Net decrease in other noninterest-bearing investments		4,796		16,613
Net purchases of premises and equipment		(20,185)		(15,549)
Proceeds from sales of other real estate owned		91,841		105,981

Net cash provided by (used in) investing activities		28,495		(1,648,189)

CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in deposits		(342,542)		257,421
Net change in short-term funds borrowed		80,092		229,424
Proceeds from issuance of long-term debt		–		39,698
Repayments of long-term debt		(156)		(61)
Proceeds from issuance of common stock		25,212		149,908
Dividends paid on common and preferred stock		(34,601)		(22,882)
Other, net		(707)		(661)

Net cash provided by (used in) financing activities		(272,702)		652,847

Net increase (decrease) in cash and due from banks		25,014		(324,798)
Cash and due from banks at beginning of period		924,126		1,370,189

Cash and due from banks at end of period	$	949,140	$	1,045,391

Cash paid for interest	$	91,281	$	102,672
Net cash refund received for income taxes		(108)		(352,753)

See accompanying notes to consolidated financial statements.

ZIONS BANCORPORATION AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

March 31, 2011

1.	BASIS OF PRESENTATION

The accompanying unaudited consolidated financial statements of Zions Bancorporation (“the Parent”) and its majority-owned subsidiaries (collectively “the Company,” “Zions,” “we,” “our,” “us”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. References to GAAP are made according to sections of the Accounting Standards Codification (“ASC”) and to Accounting Standards Updates (“ASU”). Certain prior period amounts have been reclassified to conform to the current period presentation.

Operating results for the three-month periods ended March 31, 2011 and 2010 are not necessarily indicative of the results that may be expected in future periods. The consolidated balance sheet at December 31, 2010 is from the audited financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s 2010 Annual Report on Form 10-K.

The Company provides a full range of banking and related services through banking subsidiaries in ten Western and Southwestern states as follows: Zions First National Bank (“Zions Bank”), in Utah and Idaho; California Bank & Trust (“CB&T”); Amegy Corporation (“Amegy”) and its subsidiary, Amegy Bank, in Texas; National Bank of Arizona (“NBA”); Nevada State Bank (“NSB”); Vectra Bank Colorado (“Vectra”), in Colorado and New Mexico; The Commerce Bank of Washington (“TCBW”); and The Commerce Bank of Oregon (“TCBO”). The Parent also owns and operates certain nonbank subsidiaries that engage in wealth management and other financial related services.

2.	CERTAIN RECENT ACCOUNTING PRONOUNCEMENT

In April 2011, the Financial Accounting Standards Board (“FASB”) issued ASU 2011-3, Reconsideration of Effective Control for Repurchase Agreements. The primary feature of this new accounting guidance under ASC 860, Transfers and Servicing, relates to the criteria that determine whether a sale or a secured borrowing occurred based on the transferor’s maintenance of effective control over the transferred financial assets. The new guidance focuses on the transferor’s contractual rights and obligations with respect to the transferred financial assets and not on the transferor’s ability to perform under those rights and obligations. Accordingly, the collateral maintenance requirement is eliminated by ASU 2011-3 from the assessment of effective control. The new guidance will take effect prospectively for the first interim or annual period beginning after December 15, 2011. Early adoption is not permitted. Management is currently evaluating the impact this new guidance may have on the Company’s financial statements.

Additional recent accounting pronouncements are discussed where applicable in the Notes to Consolidated Financial Statements.

ZIONS BANCORPORATION AND SUBSIDIARIES

3.	SUPPLEMENTAL CASH FLOW INFORMATION

Noncash activities are summarized as follows:


(In thousands)	Three Months Ended March 31,
	2011		2010

Loans transferred to other real estate owned	$	89,529	$	161,025
Beneficial conversion feature transferred from common stock to preferred stock as a result of subordinated debt conversions		14,604		3,578
Subordinated debt exchanged for common stock		–		46,902
Subordinated debt converted to preferred stock		85,850		21,034

4.	INVESTMENT SECURITIES

Investment securities are summarized as follows:


	March 31, 2011
			Recognized in OCI ¹						Not recognized in OCI
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Carrying value		Gross unrealized gains		Gross unrealized losses		Estimated fair value

Held-to-maturity:
Municipal securities	$	557,684	$	–	$	–	$	557,684	$	8,570	$	3,339	$	562,915
Asset-backed securities:
Trust preferred securities – banks and insurance		263,621		–		23,997		239,624		337		61,219		178,742
Other		27,174		–		3,946		23,228		925		7,741		16,412
Other debt securities		100		–		–		100		–		–		100

	$	848,579	$	–	$	27,943	$	820,636	$	9,832	$	72,299	$	758,169

Available-for-sale:
U.S. Treasury securities	$	725,443	$	397	$	8	$	725,832					$	725,832
U.S. Government agencies and corporations:
Agency securities		180,432		6,071		107		186,396						186,396
Agency guaranteed mortgage-backed securities		580,298		12,344		2,163		590,479						590,479
Small Business Administration loan-backed securities		919,690		7,430		6,999		920,121						920,121
Municipal securities		141,810		2,369		404		143,775						143,775
Asset-backed securities:
Trust preferred securities – banks and insurance		1,940,474		9,994		764,732		1,185,736						1,185,736
Trust preferred securities – real estate investment trusts		40,260		–		20,546		19,714						19,714
Auction rate securities		110,203		578		1,537		109,244						109,244
Other		100,191		1,522		22,797		78,916						78,916

		4,738,801		40,705		819,293		3,960,213						3,960,213
Mutual funds and stock		170,062		67		–		170,129						170,129

	$	4,908,863	$	40,772	$	819,293	$	4,130,342					$	4,130,342

ZIONS BANCORPORATION AND SUBSIDIARIES


	March 31, 2010
			Recognized in OCI ¹						Not recognized in OCI
(In thousands)	Amortized cost		Gross unrealized gains		Gross unrealized losses		Carrying value		Gross unrealized gains		Gross unrealized losses		Estimated fair value

Held-to-maturity:
Municipal securities	$	638,371	$	–	$	–	$	638,371	$	8,951	$	4,806	$	642,516
Asset-backed securities:
Trust preferred securities – banks and insurance		264,701		–		25,667		239,034		267		42,990		196,311
Other		29,984		–		4,587		25,397		458		8,525		17,330
Other debt securities		100		–		–		100		–		1		99

	$	933,156	$	–	$	30,254	$	902,902	$	9,676	$	56,322	$	856,256

Available-for-sale:
U.S. Treasury securities	$	27,669	$	350	$	–	$	28,019					$	28,019
U.S. Government agencies and corporations:
Agency securities		224,278		6,793		93		230,978						230,978
Agency guaranteed mortgage-backed securities		371,596		11,557		425		382,728						382,728
Small Business Administration loan-backed securities		798,005		3,369		16,061		785,313						785,313
Municipal securities		230,474		5,054		549		234,979						234,979
Asset-backed securities:
Trust preferred securities – banks and insurance		1,994,937		55,552		697,549		1,352,940						1,352,940
Trust preferred securities – real estate investment trusts		54,232		–		30,378		23,854						23,854
Auction rate securities		156,358		823		386		156,795						156,795
Other		115,777		1,413		45,855		71,335						71,335

		3,973,326		84,911		791,296		3,266,941						3,266,941
Mutual funds and stock		170,081		76		–		170,157						170,157

	$	4,143,407	$	84,987	$	791,296	$	3,437,098					$	3,437,098

¹	The gross unrealized losses recognized in Other Comprehensive Income (“OCI”) resulted from a transfer of AFS securities to HTM in 2008.

The amortized cost and estimated fair value of investment debt securities are shown subsequently as of March 31, 2011 by expected maturity distribution for structured asset-backed CDOs (“ABS CDOs”) and by contractual maturity distribution for other debt securities. Actual maturities may differ from expected or contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties:


	Held-to-maturity				Available-for-sale
(In thousands)	Amortized cost		Estimated fair value		Amortized cost		Estimated fair value

Due in one year or less	$	51,224	$	51,661	$	1,130,437	$	1,096,796
Due after one year through five years		228,321		226,342		901,953		870,511
Due after five years through ten years		157,973		150,575		754,738		662,934
Due after ten years		411,061		329,591		1,951,673		1,329,972

	$	848,579	$	758,169	$	4,738,801	$	3,960,213

The following is a summary of the amount of gross unrealized losses for debt securities and the estimated fair value by length of time the securities have been in an unrealized loss position:

ZIONS BANCORPORATION AND SUBSIDIARIES


	March 31, 2011
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value

Held-to-maturity:
Municipal securities	$	564	$	31,398	$	2,775	$	23,394	$	3,339	$	54,792
Asset-backed securities:
Trust preferred securities – banks and insurance		–		–		85,216		178,344		85,216		178,344
Other		–		–		11,687		14,495		11,687		14,495

	$	564	$	31,398	$	99,678	$	216,233	$	100,242	$	247,631

Available-for-sale:
U.S. Treasury securities	$	8	$	199,834	$	–	$	–	$	8	$	199,834
U.S. Government agencies and corporations:
Agency securities		83		9,442		24		946		107		10,388
Agency guaranteed mortgage-backed securities		2,163		263,661		–		–		2,163		263,661
Small Business Administration loan-backed securities		2,838		292,232		4,161		224,376		6,999		516,608
Municipal securities		401		19,319		3		391		404		19,710
Asset-backed securities:
Trust preferred securities – banks and insurance		15,954		181,329		748,778		863,265		764,732		1,044,594
Trust preferred securities – real estate investment trusts		–		–		20,546		19,714		20,546		19,714
Auction rate securities		1,537		67,008		–		–		1,537		67,008
Other		–		–		22,797		44,369		22,797		44,369

	$	22,984	$	1,032,825	$	796,309	$	1,153,061	$	819,293	$	2,185,886


	March 31, 2010
	Less than 12 months				12 months or more				Total
(In thousands)	Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value		Gross unrealized losses		Estimated fair value

Held-to-maturity:
Municipal securities	$	743	$	43,450	$	4,063	$	26,998	$	4,806	$	70,448
Asset-backed securities:
Trust preferred securities – banks and insurance		–		–		68,657		196,311		68,657		196,311
Other		–		–		13,112		17,330		13,112		17,330
Other debt securities		–		–		1		99		1		99

	$	743	$	43,450	$	85,833	$	240,738	$	86,576	$	284,188

Available-for-sale:
U.S. Government agencies and corporations:
Agency securities	$	55	$	5,248	$	38	$	1,671	$	93	$	6,919
Agency guaranteed mortgage-backed securities		425		48,232		–		–		425		48,232
Small Business Administration loan-backed securities		2,101		67,505		13,960		488,164		16,061		555,669
Municipal securities		544		12,283		5		853		549		13,136
Asset-backed securities:
Trust preferred securities – banks and insurance		14,154		68,573		683,395		897,006		697,549		965,579
Trust preferred securities – real estate investment trusts		8,522		305		21,856		23,549		30,378		23,854
Auction rate securities		206		35,517		180		10,861		386		46,378
Other		2,252		5,833		43,603		51,571		45,855		57,404

	$	28,259	$	243,496	$	763,037	$	1,473,675	$	791,296	$	1,717,171

At March 31, 2011 and 2010, respectively, 78 and 104 HTM and 587 and 619 AFS investment securities were in an unrealized loss position.

We conduct a formal review of investment securities under ASC 320, Investments – Debt and Equity Securities, on a quarterly basis for the presence of other-than-temporary impairment (“OTTI”). We assess whether OTTI is present when the fair value of a debt security is less than its amortized cost basis at the

ZIONS BANCORPORATION AND SUBSIDIARIES

balance sheet date. Under these circumstances, OTTI is considered to have occurred if (1) we intend to sell the security; (2) it is “more likely than not” we will be required to sell the security before recovery of its amortized cost basis; or (3) the present value of expected cash flows is not sufficient to recover the entire amortized cost basis. The “more likely than not” criteria is a lower threshold than the “probable” criteria under previous guidance.

Credit-related OTTI is recognized in earnings while noncredit-related OTTI on securities not expected to be sold is recognized in OCI. Noncredit-related OTTI is based on other factors, including illiquidity. Presentation of OTTI is made in the statement of income on a gross basis with an offset for the amount of OTTI recognized in OCI. For securities classified as HTM, the amount of noncredit-related OTTI recognized in OCI is accreted to the credit-adjusted expected cash flow amounts of the securities over future periods.

Our 2010 Annual Report on Form 10-K describes in more detail our OTTI evaluation process. The following summarizes the conclusions from our OTTI evaluation for those security types that have significant gross unrealized losses at March 31, 2011:

Municipal securities

The HTM securities are purchased directly from the municipalities and are generally not rated by a credit rating agency. The AFS securities are rated as investment grade by various credit rating agencies. Both the HTM and AFS securities are at fixed and variable rates with maturities from one to 25 years. Fair values of these securities are largely driven by interest rates. We perform credit quality reviews on these securities at each reporting period. Because the decline in fair value is not attributable to credit quality, no OTTI was recorded for these securities at March 31, 2011.

Asset-backed securities

Trust preferred securities – banks and insurance: These CDO securities are variable rate pools of trust preferred securities related to banks and insurance companies. They are rated by one or more Nationally Recognized Statistical Rating Organizations (“NRSROs”), which are rating agencies registered with the Securities and Exchange Commission (“SEC”). They were purchased generally at par. Unrealized losses were caused mainly by the following factors: (1) collateral deterioration due to bank failures and credit concerns across the banking sector; (2) widening of credit spreads for asset-backed securities; and (3) general illiquidity in the market for CDOs. Our ongoing review of these securities in accordance with the previous discussion determined that OTTI should be recorded at March 31, 2011.

Trust preferred securities – real estate investment trusts (“REITs”): These CDO securities are variable rate pools of trust preferred securities primarily related to REITs, and are rated by one or more NRSROs. They were purchased generally at par. Unrealized losses were caused mainly by severe deterioration in mortgage REITs and homebuilder credit in addition to the same factors previously discussed for banks and insurance CDOs. Our ongoing review of these securities in accordance with the previous discussion determined that OTTI should be recorded at March 31, 2011.

Other asset-backed securities: Most of these CDO securities were purchased in 2009 from Lockhart at their carrying values and were then adjusted to fair value. Certain of these CDOs consist of ABS CDOs (also known as diversified structured finance CDOs). Unrealized losses since acquisition were caused mainly by deterioration in collateral quality and widening of credit spreads for asset backed securities. Unrealized losses decreased during the first quarter of 2011 as credit quality stabilized. Based on our review, no OTTI was recorded for these securities at March 31, 2011.

U.S. Government agencies and corporations

ZIONS BANCORPORATION AND SUBSIDIARIES

Small Business Administration (“SBA”) loan-backed securities: These securities were generally purchased at premiums with maturities from five to 25 years and have principal cash flows guaranteed by the SBA. Because the decline in fair value is not attributable to credit quality, no OTTI was recorded for these securities at March 31, 2011.

The following is a tabular rollforward of the total amount of credit-related OTTI, including amounts recognized in earnings:


(In thousands)	Three Months Ended March 31, 2011						Three Months Ended March 31, 2010
	HTM		AFS		Total		HTM		AFS		Total

Balance of credit-related OTTI at beginning of period	$	(5,357)	$	(335,682)	$	(341,039)	$	(5,206)	$	(269,251)	$	(274,457)
Additions recognized in earnings during the period:
Credit-related OTTI not previously recognized ¹		–		–		–		–		(325)		(325)
Credit-related OTTI previously recognized when there is no intent to sell and no requirement to sell before recovery of amortized cost basis ²		–		(3,105)		(3,105)		(12)		(30,926)		(30,938)

Subtotal of amounts recognized in earnings		–		(3,105)		(3,105)		(12)		(31,251)		(31,263)
Reductions for securities sold during the period				26,434		26,434						–

Balance of credit-related OTTI at end of period	$	(5,357)	$	(312,353)	$	(317,710)	$	(5,218)	$	(300,502)	$	(305,720)

¹	Relates to securities not previously impaired.

²	Relates to additional impairment on securities previously impaired.

To determine the credit component of OTTI for all security types, we utilize projected cash flows as the best estimate of fair value. These cash flows are credit adjusted using, among other things, assumptions for default probability assigned to each portion of performing collateral. The credit adjusted cash flows are discounted at a security specific coupon rate to identify any OTTI, and then at a market rate for valuation purposes.

During the three months ended March 31, 2011, for those securities with credit-related OTTI, there was no noncredit-related OTTI recognized in OCI. For the three months ended March 31, 2010, the $17.3 million ($10.7 million after-tax) recognized was on AFS securities.

Nontaxable interest income on securities was $5.8 million and $7.2 million for the three months ended March 31, 2011 and 2010, respectively.

ZIONS BANCORPORATION AND SUBSIDIARIES

The following summarizes gains and losses, including OTTI, that were recognized in the statement of income:


	Three Months Ended
	March 31, 2011				March 31, 2010
(In thousands)	Gross gains		Gross losses		Gross gains		Gross losses

Investment securities:
Held-to-maturity	$	46	$	–	$	–	$	12
Available-for-sale		3,519		6,729		1,284		31,279
Other noninterest-bearing investments:
Nonmarketable equity securities		1,067		–		2,072		5,237
Other		1		171		–		–

		4,633		6,900		3,356		36,528

Net losses			$	(2,267)			$	(33,172)

Statement of income information:
Net impairment losses on investment securities			$	(3,105)			$	(31,263)
Equity securities gains (losses), net				897				(3,165)
Fixed income securities gains (losses), net				(59)				1,256

Net losses			$	(2,267)			$	(33,172)

Gains and losses on the sale of securities are recognized using the specific identification method and recorded in noninterest income.

Securities with a carrying value of $1.5 billion and $1.7 billion at March 31, 2011 and 2010, respectively, were pledged to secure public and trust deposits, advances, and for other purposes as required by law. Securities are also pledged as collateral for security repurchase agreements.

5.	LOANS AND ALLOWANCE FOR CREDIT LOSSES

ASU 2010-20, Disclosures about the Credit Quality of Financing Receivables and the Allowance for Credit Losses, requires certain additional disclosures under ASC 310, Receivables, which became effective at December 31, 2010. Certain other disclosures were required beginning March 31, 2011 and relate to additional detail for the rollforward of the allowance for credit losses and for impaired loans. The new guidance is incorporated in the following discussion. It relates only to financial statement disclosures and does not affect the Company’s financial condition or results of operations.

Additional accounting guidance and disclosures for troubled debt restructurings (“TDRs”) will be required for the Company beginning September 30, 2011 in accordance with ASU 2011-02, A Creditor’s Determination of Whether a Restructuring Is a Troubled Debt Restructuring. ASU 2011-02 was issued April 5, 2011 and supersedes the deferral granted by ASU 2011-01 of the effective date of disclosures about TDRs which were included in ASU 2010-20. In addition to the required new disclosures, ASU 2011-02 provides criteria to evaluate if a TDR exists based on whether (1) the restructuring constitutes a concession by the creditor and (2) the debtor is experiencing financial difficulty. Management is currently evaluating the impact this new guidance may have on the Company’s financial statements.

ZIONS BANCORPORATION AND SUBSIDIARIES

Loans and Loans Held for Sale

Loans are summarized as follows according to major portfolio segment and specific loan class:


(In thousands)	March 31, 2011		December 31, 2010		March 31, 2010

Loans held for sale	$	195,055	$	206,286	$	171,892

Commercial:
Commercial and industrial	$	9,275,650	$	9,167,001	$	9,268,840
Leasing		409,264		410,174		442,290
Owner occupied		8,252,005		8,217,363		8,456,932
Municipal		435,220		438,985		331,489

Total commercial		18,372,139		18,233,523		18,499,551
Commercial real estate:
Construction and land development		2,954,781		3,499,103		5,060,388
Term		7,856,834		7,649,494		7,524,065

Total commercial real estate		10,811,615		11,148,597		12,584,453
Consumer:
Home equity credit line		2,120,091		2,141,740		2,120,655
1-4 family residential		3,619,647		3,499,149		3,584,339
Construction and other consumer real estate		324,381		343,257		402,971
Bankcard and other revolving plans		275,389		296,936		314,054
Other		230,376		233,193		278,830

Total consumer		6,569,884		6,514,275		6,700,849
FDIC-supported loans		912,881		971,377		1,320,737

Total loans	$	36,666,519	$	36,867,772	$	39,105,590

FDIC-supported loans were acquired during 2009 and are indemnified by the FDIC under loss sharing agreements. The FDIC-supported loan balances presented in the accompanying schedules include purchased loans accounted for under ASC 310-30 at their carrying values rather than their outstanding balances. See subsequent discussion under purchased loans.

Owner occupied and commercial real estate loans include unamortized premiums of approximately $82.3 million at March 31, 2011 and $88.4 million at December 31, 2010.

Municipal loans generally include loans to municipalities with the debt service being repaid from general funds or pledged revenues of the municipal entity, or to private commercial entities or 501(c)(3) not-for-profit entities utilizing a pass-through municipal entity to achieve favorable tax treatment.

Loans with a carrying value of approximately $20.6 billion at March 31, 2011 and $20.4 billion at December 31, 2010 were pledged as collateral for current and potential borrowings.

We sold loans totaling $458 million for the three months ended March 31, 2011 that were previously classified as loans held for sale. The amount sold approximately equaled the amount added to loans held for sale. Income from loans sold, excluding servicing, was $5.2 million for the three months ended March 31, 2011.

Allowance for Credit Losses

The allowance for credit losses (“ACL”) consists of the allowance for loan and lease losses (“ALLL,” also referred to as the allowance for loan losses) and the reserve for unfunded lending commitments (“RULC”).

ZIONS BANCORPORATION AND SUBSIDIARIES

Allowance for Loan and Lease Losses: The ALLL represents our estimate of probable and estimable losses inherent in the loan and lease portfolio as of the balance sheet date. Losses are charged to the ALLL when recognized. Generally, commercial loans are charged off or charged down at the point at which they are determined to be uncollectible in whole or in part, or when 180 days past due unless the loan is well secured and in the process of collection. Consumer loans are either charged off or charged down to net realizable value no later than the month in which they become 180 days past due. Closed-end loans, i.e., those with a maturity date, that are not secured by residential real estate are either charged off or charged down to net realizable value no later than the month in which they become 120 days past due. We establish the amount of the ALLL by analyzing the portfolio at least quarterly, and we adjust the provisions for loan losses so the ALLL is at an appropriate level at the balance sheet date.

The methodologies we use to estimate the ALLL depend upon the impairment status and portfolio segment of the loan. For the commercial and commercial real estate segments, we use a comprehensive loan grading system to assign probability of default and loss given default grades to each loan. The credit quality indicators discussed subsequently are based on this grading system. Probability of default and loss given default grades are based on both financial and statistical models and loan officers’ judgment. We create groupings of these grades for each subsidiary bank and loan class and calculate historic loss rates using a loss migration analysis that attributes historic realized losses to historic loan grades over the time period of the loss migration analysis, ranging from the previous 6 to 60 months.

For the consumer loan segment, we use roll rate models to forecast probable inherent losses. Roll rate models measure the rate at which consumer loans migrate from one delinquency bucket to the next worse delinquency bucket, and eventually to loss. We estimate roll rates for consumer loans using recent delinquency and loss experience. These roll rates are then applied to current delinquency levels to estimate probable inherent losses.

For FDIC-supported loans purchased with evidence of credit deterioration, we determine the ALLL according to ASC 310-30. The accounting for these loans, including the allowance calculation, is described in the purchased loans section following.

After applying historic loss experience, as described above, we review the quantitatively derived level of ALLL for each segment using qualitative criteria. We track various risk factors that influence our judgment regarding the level of the ALLL across the portfolio segments. Primary qualitative factors that may not be reflected in our quantitative models include:

•

Asset quality trends

•

Risk management and loan administration practices

•

Risk identification practices

•

Effect of changes in the nature and volume of the portfolio

•

Existence and effect of any portfolio concentrations

•

National economic and business conditions

•

Regional and local economic and business conditions

•

Data availability and applicability

We review changes in these factors to ensure that changes in the level of the ALLL are consistent with changes in these factors. The magnitude of the impact of each of these factors on our qualitative assessment of the ALLL changes from quarter to quarter according to the extent these factors are already reflected in historic loss rates and according to the extent these factors diverge from one another. We also consider the

ZIONS BANCORPORATION AND SUBSIDIARIES

uncertainty inherent in the estimation process when evaluating the ALLL.

Reserve for Unfunded Lending Commitments: The Company also estimates a reserve for potential losses associated with off-balance sheet commitments and standby letters of credit. We determine the RULC using the same procedures and methodologies that we use for the ALLL. The loss factors used in the RULC are the same as the loss factors used in the ALLL, and the qualitative adjustments used in the RULC are the same as the qualitative adjustments used in the ALLL. We adjust the Company’s unfunded lending commitments that are not unconditionally cancelable to an outstanding amount equivalent using credit conversion factors and we apply the loss factors to the outstanding equivalents.

Changes in ACL Assumptions: During the first quarter of 2011, we changed certain assumptions in our loss migration model that we use to estimate the ALLL and RULC for the commercial and commercial real estate segments by expanding the loss look-back periods to include losses as far back as 60 months. Prior to the first quarter of 2011, we used loss migration models based on the most recent 18 months of loss data to estimate probable losses for the portions of the segments that were collectively evaluated for impairment. The expansion of the look-back periods to a maximum of 60 months during the first quarter of 2011 increased the quantitative portion of the ACL by approximately $63 million as of March 31, 2011 over what it would have been had the previous assumptions been used. We considered these assumption changes in assessing our qualitative adjustments to the ACL. The change was made so we could continue to capture the inherent risks in the portfolio, as we believe the high level of loss severity rates that occurred during the longer periods are still relevant to estimating probable inherent losses in those segments. Our quantitative models serve as the starting point for our estimation of the appropriate level of the ACL, and therefore we utilize the qualitative portion of the ACL to capture these risks not captured in the quantitative models.

Changes in the allowance for credit losses are summarized as follows:


(In thousands)	Commercial		Commercial real estate		Consumer		FDIC- supported		Total

Allowance for loan losses:
Balance at beginning of period	$	761,107	$	487,235	$	154,326	$	37,673	$	1,440,341
Additions:
Provision for loan losses		(19,725)		61,862		15,956		1,907		60,000
Change in allowance covered by FDIC indemnification								(9,048)		(9,048)
Deductions:
Gross loan and lease charge-offs		(59,383)		(73,380)		(26,321)		(8,884)		(167,968)
Net charge-offs recoverable from FDIC								4,534		4,534
Recoveries		12,091		4,797		4,149		904		21,941

Net loan and lease charge-offs		(47,292)		(68,583)		(22,172)		(3,446)		(141,493)

Balance at end of period	$	694,090	$	480,514	$	148,110	$	27,086	$	1,349,800


Reserve for unfunded lending commitments:
Balance at beginning of period	$	83,352	$	26,373	$	1,983	$	–	$	111,708
Provision credited to earnings		(8,923)		(73)		(544)		–		(9,540)

Balance at end of period	$	74,429	$	26,300	$	1,439	$	–	$	102,168


Total allowance for credit losses:
Allowance for loan losses	$	694,090	$	480,514	$	148,110	$	27,086	$	1,349,800
Reserve for unfunded lending commitments		74,429		26,300		1,439		–		102,168

Total allowance for credit losses	$	768,519	$	506,814	$	149,549	$	27,086	$	1,451,968

ZIONS BANCORPORATION AND SUBSIDIARIES

The ALLL and outstanding loan balances according to the Company’s impairment method are summarized as follows at March 31, 2011:


(In thousands)	Commercial		Commercial real estate		Consumer		FDIC- supported		Total

Allowance for loan losses:
Individually evaluated for impairment	$	37,928	$	23,419	$	8,125	$	97	$	69,569
Collectively evaluated for impairment		656,162		457,095		139,985		20,637		1,273,879
Purchased loans with evidence of credit deterioration								6,352		6,352

Total	$	694,090	$	480,514	$	148,110	$	27,086	$	1,349,800


Outstanding loan balances:
Individually evaluated for impairment	$	502,071	$	916,647	$	127,320	$	1,517	$	1,547,555
Collectively evaluated for impairment		17,870,068		9,894,968		6,442,564		753,409		34,961,009
Purchased loans with evidence of credit deterioration								157,955		157,955

Total	$	18,372,139	$	10,811,615	$	6,569,884	$	912,881	$	36,666,519

Nonaccrual and Past Due Loans

Loans are generally placed on nonaccrual status when payment in full of principal and interest is not expected, or the loan is 90 days or more past due as to principal or interest, unless the loan is both well secured and in the process of collection.

A nonaccrual loan may be returned to accrual status when all delinquent interest and principal become current in accordance with the terms of the loan agreement; the loan, if secured, is well secured; the borrower has paid according to the contractual terms for a minimum of six months; and analysis of the borrower indicates a reasonable assurance of the ability to maintain payments. Payments received on nonaccrual loans are applied as a reduction to the principal outstanding.

Closed-end loans with payments scheduled monthly are reported as past due when the borrower is in arrears for two or more monthly payments. Similarly, open-end credit such as charge-card plans and other revolving credit plans are reported as past due when the minimum payment has not been made for two or more billing cycles. Other multipayment obligations (i.e., quarterly, semiannual, etc.), single payment, and demand notes are reported as past due when either principal or interest is due and unpaid for a period of 30 days or more.

Nonaccrual loans are summarized as follows at March 31, 2011 and 2010:

ZIONS BANCORPORATION AND SUBSIDIARIES


(In thousands)	Three Months Ended March 31,
	2011		2010

Loans held for sale	$	20,735	$	–

Commercial:
Commercial and industrial	$	212,692	$	318,154
Leasing		1,037		7,872
Owner occupied		317,268		459,522
Municipal		1,974		2,065

Total commercial		532,971		787,613
Commercial real estate:
Construction and land development		399,147		802,559
Term		270,315		323,817

Total commercial real estate		669,462		1,126,376
Consumer:
Home equity credit line		12,527		14,162
1-4 family residential		118,574		127,465
Construction and other consumer real estate		21,293		28,151
Bankcard and other revolving plans		330		384
Other		3,629		3,052

Total consumer loans		156,353		173,214
FDIC-supported loans		32,935		283,999

Total	$	1,391,721	$	2,371,202

Past due loans (accruing and nonaccruing) are summarized as follows at March 31, 2011:


(In thousands)	Current		30-89 days past due		90+ days past due		Total past due		Total loans		Recorded investment in accruing loans 90+ days past due		Nonaccrual loans that are current ¹

Loans held for sale	$	176,064	$	488	$	18,503	$	18,991	$	195,055	$	–	$	1,970

Commercial:
Commercial and industrial	$	9,058,680	$	92,757	$	124,213	$	216,970	$	9,275,650	$	6,425	$	62,667
Leasing		407,785		547		932		1,479		409,264		69		44
Owner occupied		7,982,556		77,894		191,555		269,449		8,252,005		2,497		105,354
Municipal		435,220		–		–		–		435,220		–		1,974

Total commercial		17,884,241		171,198		316,700		487,898		18,372,139		8,991		170,039
Commercial real estate:
Construction and land development		2,675,638		79,667		199,476		279,143		2,954,781		1,567		146,727
Term		7,658,565		82,590		115,679		198,269		7,856,834		1,084		124,371

Total commercial real estate		10,334,203		162,257		315,155		477,412		10,811,615		2,651		271,098
Consumer:
Home equity credit line		2,106,540		7,549		6,002		13,551		2,120,091		–		3,369
1-4 family residential		3,501,515		46,855		71,277		118,132		3,619,647		1,577		29,872
Construction and other consumer real estate		310,405		4,824		9,152		13,976		324,381		103		10,301
Bankcard and other revolving plans		270,275		3,556		1,558		5,114		275,389		1,508		189
Other		225,387		2,682		2,307		4,989		230,376		–		1,051

Total consumer loans		6,414,122		65,466		90,296		155,762		6,569,884		3,188		44,782
FDIC-supported loans		774,107		22,558		116,216		138,774		912,881		94,715		11,368

Total	$	35,406,673	$	421,479	$	838,367	$	1,259,846	$	36,666,519	$	109,545	$	497,287

¹	Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

ZIONS BANCORPORATION AND SUBSIDIARIES

Credit Quality Indicators

In addition to the past due and nonaccrual criteria, we also analyze loans using a loan grading system. We generally assign internal grades to loans with commitments less than $500,000 based on the performance of those loans. Performance-based grades follow our definitions of Pass, Special Mention, Substandard, and Doubtful.

We generally assign internal grades to commercial and commercial real estate loans with commitments equal to or greater than $500,000 based on financial/statistical models and loan officer judgment. For these larger loans, we assign one of fourteen probability of default grades and one of twelve loss-given default grades. We use the ten Pass probability of default grades for loans that do not meet one of the grades listed subsequently. The other four grades follow our definitions of Special Mention, Substandard, Doubtful, and Loss. Loss indicates that the outstanding balance has been charged-off. The definitions of Pass, Special Mention, Substandard, and Doubtful are summarized as follows:

Pass: A Pass asset is higher quality and does not fit any of the other categories described below. The likelihood of loss is considered remote.

Special Mention: A Special Mention asset has potential weaknesses that may be temporary or, if left uncorrected, may result in a loss. While concerns exist, the bank is currently protected and loss is considered unlikely and not imminent.

Substandard: A Substandard asset is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified have well defined weaknesses and are characterized by the distinct possibility that the bank may sustain some loss if deficiencies are not corrected.

Doubtful: A Doubtful asset has all the weaknesses inherent in a Substandard asset with the added characteristics that the weaknesses make collection or liquidation in full highly questionable.

Outstanding loan balances (accruing and nonaccruing) categorized by these credit quality indicators are summarized as follows at March 31, 2011:

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(In thousands)	Pass		Special Mention		Sub- standard		Doubtful		Total loans		Total allowance

Loans held for sale	$	174,320	$	–	$	20,735	$	–	$	195,055	$	–

Commercial:
Commercial and industrial	$	8,493,411	$	235,440	$	518,714	$	28,085	$	9,275,650
Leasing		397,270		1,027		10,967		–		409,264
Owner occupied		7,397,747		162,330		688,414		3,514		8,252,005
Municipal		423,565		305		11,350		–		435,220

Total commercial		16,711,993		399,102		1,229,445		31,599		18,372,139	$	694,090
Commercial real estate:
Construction and land development		1,678,638		375,439		892,202		8,502		2,954,781
Term		6,948,519		289,546		616,742		2,027		7,856,834

Total commercial real estate		8,627,157		664,985		1,508,944		10,529		10,811,615		480,514
Consumer:
Home equity credit line		2,076,744		107		43,196		44		2,120,091
1-4 family residential		3,455,353		6,746		156,298		1,250		3,619,647
Construction and other consumer real estate		294,301		1,470		28,078		532		324,381
Bankcard and other revolving plans		262,376		4,042		8,933		38		275,389
Other		223,929		408		6,033		6		230,376

Total consumer loans		6,312,703		12,773		242,538		1,870		6,569,884		148,110
FDIC-supported loans		601,018		53,282		258,546		35		912,881		27,086

Total	$	32,252,871	$	1,130,142	$	3,239,473	$	44,033	$	36,666,519	$	1,349,800

Impaired Loans

Loans are considered impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due in accordance with the contractual terms of the loan agreement, including scheduled interest payments. If a nonaccrual loan has a balance greater than $500,000 or if a loan is a TDR, we consider the loan to be impaired and estimate a specific reserve for the loan according to ASC 310. Smaller nonaccrual loans are pooled for ALLL estimation purposes. When loans are impaired, we estimate the amount of the balance that is impaired and assign a specific reserve to the loan based on the estimated present value of the loan’s future cash flows discounted at the loan’s effective interest rate, the observable market price of the loan, or the fair value of the loan’s underlying collateral less the cost to sell. When we base the impairment amount on the fair value of the loan’s underlying collateral, we generally charge off the portion of the balance that is impaired, such that these loans do not have a specific reserve in the ALLL. Payments received on impaired loans that are accruing are recognized in interest income, according to the contractual loan agreement. Payments received on impaired loans that are on nonaccrual are not recognized in interest income, but are applied as a reduction to the principal outstanding. Payments are recognized when cash is received.

Information on impaired loans is summarized as follows at March 31, 2011:

ZIONS BANCORPORATION AND SUBSIDIARIES


	Unpaid principal balance		Recorded investment				Total recorded investment		Related allowance		Average recorded investment		Interest income recognized
(In thousands)	Unpaid principal balance		with no allowance		with allowance		Total recorded investment		Related allowance		Average recorded investment		Interest income recognized

Commercial:
Commercial and industrial	$	208,783	$	101,324	$	100,105	$	201,429	$	23,149	$	210,610	$	563
Leasing		–		–		–		–		–		–		–
Owner occupied		298,699		206,082		92,586		298,668		14,328		321,311		686
Municipal		1,974		–		1,974		1,974		451		1,983		–

Total commercial		509,456		307,406		194,665		502,071		37,928		533,904		1,249
								–
Commercial real estate:								–
Construction and land development		515,757		424,986		90,163		515,149		9,177		583,756		1,424
Term		401,528		277,150		124,348		401,498		14,242		416,262		1,759

Total commercial real estate		917,285		702,136		214,511		916,647		23,419		1,000,018		3,183
Consumer:
Home equity credit line		1,201		1,201		–		1,201		–		1,956		–
1-4 family residential		126,705		71,669		36,587		108,256		7,225		108,476		481
Construction and other consumer real estate		13,747		7,930		5,804		13,734		701		15,986		10
Bankcard and other revolving plans		30		–		30		30		30		52		–
Other		4,098		3,584		515		4,099		169		3,725		–

Total consumer loans		145,781		84,384		42,936		127,320		8,125		130,195		491
FDIC-supported loans		400,443		113,731		45,741		159,472		6,449		177,961		14,286	¹

Total	$	1,972,965	$	1,207,657	$	497,853	$	1,705,510	$	75,921	$	1,842,078	$	19,209

¹	The balance of interest income recognized results primarily from accretion of interest income on impaired FDIC-supported loans.

Modified and Restructured Loans

Loans may be modified in the normal course of business for competitive reasons or to strengthen the Company’s position. Loan modifications and restructurings may also occur when the borrower experiences financial difficulty and needs temporary or permanent relief from the original contractual terms of the loan. These modifications are structured on a loan-by-loan basis, and depending on the circumstances, may include extended payment terms, a modified interest rate, forgiveness of principal, or other concessions. When this occurs, the loan may be considered a TDR. Loans restructured at a rate equal to or greater than that of a new loan with comparable risk at the time the contract is modified may be excluded from the impairment assessment and may cease to be considered impaired loans in the calendar years subsequent to the restructuring if they are not impaired based on the modified terms. A loan on nonaccrual and restructured as a TDR will remain on nonaccrual status until the borrower has proven the ability to perform under the modified structure for a minimum of six months, and there is evidence that such payments can and are likely to continue as agreed. Performance prior to the restructuring, or significant events that coincide with the restructuring, are included in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual at the time of restructuring or after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is uncertain, the loan remains classified as a nonaccrual loan.

Concentrations of Credit Risk

We perform an ongoing analysis of our loan portfolio to evaluate whether there is any significant exposure to an individual borrower or group(s) of borrowers as a result of any concentrations of credit risk. Such credit risks (whether on- or off-balance sheet) may occur when groups of borrowers or counterparties have similar economic characteristics and are similarly affected by changes in economic or other conditions. Credit risk also includes the loss that would be recognized subsequent to the reporting date if counterparties failed to perform as contracted. Our analysis as of March 31, 2011 has concluded that no significant exposure exists from such credit risks. See Note 6 for a discussion of counterparty risk associated with the Company’s derivative transactions.

ZIONS BANCORPORATION AND SUBSIDIARIES

Purchased Loans

We purchase loans in the ordinary course of business and account for them and the related interest income in accordance with ASC 310-20, Nonrefundable Fees and Other Costs, or ASC 310-30, Loans and Debt Securities Acquired with Deteriorated Credit Quality, as appropriate. Interest income is recognized based on contractual cash flows under ASC 310-20 and on expected cash flows under ASC 310-30.

During 2009, CB&T and NSB acquired failed banks from the FDIC as receiver and entered into loss sharing agreements with the FDIC for the acquired loans and foreclosed assets. The FDIC assumes 80% of credit losses up to a threshold specified for each acquisition and 95% above the threshold for a period of up to ten years. The loans acquired from the FDIC are presented separately in the Company’s balance sheet as “FDIC-supported loans.”

During the first quarter of 2011, certain FDIC-supported loans charged off at the time of acquisition were determined to be covered by the FDIC loss sharing agreement. The FDIC remitted $18.9 million to the Company, which was recognized in other noninterest income.

Upon acquisition, in accordance with applicable accounting guidance, the acquired loans were recorded at their fair value without a corresponding ALLL. The acquired foreclosed assets and subsequent real estate foreclosures were included with other real estate owned in the balance sheet and amounted to $43.9 million at March 31, 2011, $40.0 million at December 31, 2010, and $47.4 million at March 31, 2010.

Acquired loans which have evidence of credit deterioration and for which it is probable that not all contractual payments will be collected are accounted for as loans under ASC 310-30. Certain acquired loans (including loans with revolving privileges) without evidence of credit deterioration are accounted for under ASC 310-20 and are excluded from the following tables.

The outstanding balances of all contractually required payments and the related carrying amounts for loans under ASC 310-30 are as follows:


(In thousands)	March 31 2011		December 31, 2010		March 31, 2010¹

Commercial	$	383,391	$	413,783	$	523,439
Commercial real estate		713,506		746,206		1,062,808
Consumer		67,813		79,393		101,690

Outstanding balance	$	1,164,710	$	1,239,382	$	1,687,937


Carrying amount	$	825,615	$	877,857	$	1,193,320
ALLL		25,236		35,123		14,711

Carrying amount, net	$	800,379	$	842,734	$	1,178,609

¹	See discussion following regarding the adjustment of previously reported amounts.

At the time of acquisition, we determine the loan’s contractually required payments in excess of all cash flows expected to be collected as an amount that should not be accreted (nonaccretable difference). With respect to the cash flows expected to be collected, the portion representing the excess of the loan’s expected cash flows over our initial investment (accretable yield) is accreted into interest income on a level yield basis over the remaining expected life of the loan or pool of loans. The effects of estimated prepayments are considered in estimating the expected cash flows.

Changes in the accretable yield are as follows:

ZIONS BANCORPORATION AND SUBSIDIARIES


(In thousands)	Three Months Ended March 31,
	2011			2010 ¹

Balance at beginning of period	$	277,005		$	161,977
Accretion		(31,443	)		(17,677	)
Reclassification from nonaccretable difference		23,392			5,054
Disposals and other		2,782			6,540

Balance at end of period	$	271,736		$	155,894

¹	See discussion following regarding the adjustment of previously reported amounts.

Over the life of the loan or pool, we continue to estimate cash flows expected to be collected. We evaluate at the balance sheet date whether the estimated present value of these loans using the effective interest rates has decreased below their carrying value, and if so, we record a provision for loan losses. The present value of any subsequent increase in these loans’ actual or expected cash flows is used first to reverse any existing ALLL. Such reversal did not occur for the periods presented herein. For any remaining increases in cash flows expected to be collected, we increase the amount of accretable yield on a prospective basis over the remaining life of the loan and recognize this increase in interest income. Additionally, with respect to FDIC-supported loans, when changes in expected cash flows occur, to the extent applicable, we adjust the amount recoverable from the FDIC (also referred to as the FDIC indemnification asset) through a charge or credit (depending on whether there was an increase or decrease in expected cash flows) to other noninterest expense. The FDIC indemnification asset is included in other assets on the balance sheet.

The determination of the ALLL for FDIC-supported loans follows the same process described previously. However, this allowance is only established for credit deterioration subsequent to the date of acquisition and represents our estimate of the inherent losses in excess of the book value of FDIC-supported loans. The allowance for loan losses for loans acquired in FDIC-supported transactions is determined without giving consideration to the amounts recoverable through loss sharing agreements (since the loss sharing agreements are separately accounted for and thus presented “gross” on the balance sheet). The ALLL is included in the overall ALLL on the balance sheet. The provision for loan losses is reported net of changes in the amounts recoverable under the loss sharing agreements.

Certain acquired loans within the scope of ASC 310-30 are not accounted for as previously described because the estimation of cash flows to be collected involves a high degree of uncertainty. As allowed under ASC 310-30 in these circumstances, interest income is recognized on a cash basis similar to the cost recovery methodology used for nonaccrual loans. The carrying amounts in the preceding table also include the amounts for these loans. The net carrying amount of these loans was approximately $70.9 million at March 31, 2011, $78.3 million at December 31, 2010, and $175.5 million at March 31, 2010.

During the three months ended March 31, 2011 and 2010, we increased the ALLL for all FDIC-supported loans by a charge to the provision for loan losses of $1.9 million and $17.0 million, respectively. As described subsequently and in accordance with the loss sharing agreements, portions of these amounts are recoverable from the FDIC and comprise part of the FDIC indemnification asset. Charge-offs net of recoveries were $3.4 million and $2.3 million, respectively, for the three months ended March 31, 2011 and 2010.

Changes in the FDIC indemnification asset are as follows:


(In thousands)	Three Months Ended March 31,
	2011			2010

Balance at beginning of period	$	195,516		$	293,308
Amounts filed with the FDIC and collected or in process		(6,507	)		(29,527	)
Net change in asset balance due to reestimation of projected cash flows		(16,839	)		12,000

Balance at end of period	$	172,170		$	275,781

The amount of the FDIC indemnification asset was initially recorded at fair value using projected cash flows based on credit adjustments for each loan class and the loss sharing reimbursement of 80% or 95%, as appropriate. The timing of the cash flows was adjusted to reflect our expectations to receive the FDIC reimbursements within the estimated loss period. Discount rates were based on U.S. Treasury rates or the AAA composite yield on investment grade bonds of similar maturity. The amount is adjusted as actual loss experience is developed and estimated losses covered under the loss sharing agreements are updated. Estimated loan losses, if any, in excess of the amounts recoverable are reflected as period expenses through the provision for loan losses.

Amounts as of March 31, 2010 and for the three months then ended in the preceding tables presenting outstanding balances and accretable yield have been adjusted from balances previously reported for this same period. The change resulted from correcting the footnote presentation to reflect our accounting for these items under ASC 310-30. Certain of these acquired loans were previously reported as being accounted for under ASC 310-20, although they were actually being appropriately accounted for under ASC 310-30. Accordingly, these adjustments to the footnote presentation did not have a material impact on the Company’s balance sheet or results of operations.

6.	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES

We record all derivatives on the balance sheet at fair value in accordance with ASC 815, Derivatives and Hedging. Note 9 discusses the determination of fair value for derivatives, except for the Company’s total return swap which is discussed subsequently. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and the resulting designation. Derivatives used to hedge the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives used to hedge the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives used to manage the exposure to credit risk, which can include total return swaps, are considered credit derivatives. When put in place after purchase of the asset(s) to be protected, these derivatives generally may not be designated as accounting hedges. See discussion following regarding the total return swap.

For derivatives designated as fair value hedges, changes in the fair value of the derivative are recognized in earnings together with changes in the fair value of the related hedged item. The net amount, if any, representing hedge ineffectiveness, is reflected in earnings. In previous periods, we used fair value hedges to manage interest rate exposure to certain long-term debt. These hedges have been terminated and their remaining balances are being amortized into earnings, as discussed subsequently.

For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative are recorded in OCI and recognized in earnings when the hedged transaction affects earnings. The

ZIONS BANCORPORATION AND SUBSIDIARIES

ineffective portion of changes in the fair value of cash flow hedges is recognized directly in earnings.

No derivatives have been designated for hedges of investments in foreign operations.

We assess the effectiveness of each hedging relationship by comparing the changes in fair value or cash flows on the derivative hedging instrument with the changes in fair value or cash flows on the designated hedged item or transaction. For derivatives not designated as accounting hedges, changes in fair value are recognized in earnings.

Our objectives in using derivatives are to add stability to interest income or expense, to modify the duration of specific assets or liabilities as we consider advisable, to manage exposure to interest rate movements or other identified risks, and/or to directly offset derivatives sold to our customers. To accomplish these objectives, we use interest rate swaps and floors as part of our cash flow hedging strategy. These derivatives are used to hedge the variable cash flows associated with designated commercial loans.

Exposure to credit risk arises from the possibility of nonperformance by counterparties. These counterparties primarily consist of financial institutions that are well established and well capitalized. We control this credit risk through credit approvals, limits, pledges of collateral, and monitoring procedures. No losses on derivative instruments have occurred as a result of counterparty nonperformance. Nevertheless, the related credit risk is considered and measured when and where appropriate.

Interest rate swap agreements designated as cash flow hedges involve the receipt of fixed-rate amounts in exchange for variable-rate payments over the life of the agreements without exchange of the underlying principal amount. Derivatives not designated as accounting hedges, including basis swap agreements, are not speculative and are used to economically manage our exposure to interest rate movements and other identified risks, but do not meet the strict hedge accounting requirements.

Selected information with respect to notional amounts and recorded gross fair values at March 31, 2011 and 2010, and the related gain (loss) of derivative instruments for the three months then ended is summarized as follows:

ZIONS BANCORPORATION AND SUBSIDIARIES


							Three Months Ended March 31, 2011
							Amount of derivative gain (loss) recognized/reclassified
	March 31, 2011						OCI		Reclassified from AOCI to interest income		Noninterest income (expense)			Offset to interest expense
			Fair value
(In thousands)	Notional amount		Other assets		Other liabilities

Derivatives designated as hedging instruments under ASC 815
Asset derivatives
Cash flow hedges¹:
Interest rate swaps	$	495,000	$	18,921	$	518	$	18	$	12,440
Interest rate floors		95,000		740		–		4		797
Terminated swaps and floors											$	–

		590,000		19,661		518		22		13,237		–	³
Liability derivatives
Fair value hedges:
Terminated swaps on long-term debt														$	719
Total derivatives designated as hedging instruments		590,000		19,661		518		22		13,237		–			719

Derivatives not designated as hedging instruments under ASC 815
Interest rate swaps		148,234		2,530		2,556						(63)
Interest rate swaps for customers²		2,385,821		53,480		56,180						1,532
Energy commodity swaps for customers²		–		–		–						56
Basis swaps		150,000		59		–						87
Futures contracts		8,295,000		–		–						(759)
Options contracts		640,000		375		–						1,023
Total return swap		1,159,686		–		10,511						–

Total derivatives not designated as hedging instruments		12,778,741		56,444		69,247						1,876

Total derivatives	$	13,368,741	$	76,105	$	69,765	$	22	$	13,237	$	1,876		$	719

ZIONS BANCORPORATION AND SUBSIDIARIES


							Three Months Ended March 31, 2010
							Amount of derivative gain (loss) recognized/reclassified
	March 31, 2010						OCI		Reclassified from AOCI to interest income		Noninterest income (expense)			Offset to interest expense
	Notional amount		Fair value
(In thousands)	Notional amount		Other assets		Other liabilities

Derivatives designated as hedging instruments under ASC 815
Asset derivatives
Cash flow hedges¹:
Interest rate swaps	$	620,000	$	40,809	$	–	$	5,147	$	17,703
Interest rate floors		150,000		3,586		–		1,681		806
Terminated swaps and floors											$	3,897

		770,000		44,395		–		6,828		18,509		3,897	³
Liability derivatives
Fair value hedges:
Terminated swaps on long-term debt														$	979

Total derivatives designated as hedging instruments		770,000		44,395		–		6,828		18,509		3,897			979

Derivatives not designated as hedging instruments under ASC 815
Interest rate swaps		192,024		3,785		3,861						(268)
Interest rate swaps for customers²		3,060,042		70,031		71,853						(1,368)
Energy commodity swaps for customers²		99,015		11,008		10,924						(205)
Basis swaps		300,000		200		–						258
Futures contracts		2,565,000		–		–						109

Total derivatives not designated as hedging instruments		6,216,081		85,024		86,638						(1,474)

Total derivatives	$	6,986,081	$	129,419	$	86,638	$	6,828	$	18,509	$	2,423		$	979

Note: These tables are not intended to present at any given time the Company’s long/short position with respect to its derivative contracts.

¹	Amounts recognized in OCI and reclassified from accumulated OCI (“AOCI”) represent the effective portion of the derivative gain (loss).

²	Amounts include both the customer swaps and the offsetting derivative contracts.

Amounts for the three months ended March 31, 2011 and 2010 of $0 and $3,897, respectively, which reflect the acceleration of OCI amounts reclassified to income that related to previously terminated hedges, together with the reclassification amounts of $13,237 and $18,509, or a total of $13,237 and $22,406, respectively, are the amounts of reclassification included in the changes in OCI presented in Note 7.

At March 31, the fair values of derivative assets and liabilities were reduced (increased) by net credit valuation adjustments of $2.7 million and $(0.1) million in 2011, and $2.5 million and $0.6 million in 2010, respectively. These adjustments are required to reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk.

Fair value amounts recognized for the right to reclaim cash collateral (a receivable) or the obligation to return cash collateral (a payable) have been offset against recognized fair value amounts of derivatives executed with the same counterparty under a master netting arrangement. In the balance sheet, cash collateral was used

ZIONS BANCORPORATION AND SUBSIDIARIES

to reduce recorded amounts of derivative assets and liabilities by $0 and $1.9 million at March 31, 2011, and $1.8 million and $8.0 million at March 31, 2010, respectively.

We offer to our customers interest rate swaps and, through the third quarter of 2010, energy commodity swaps to assist them in managing their exposure to fluctuating interest rates and energy prices. Upon issuance, all of these customer swaps are immediately “hedged” by offsetting derivative contracts, such that the Company minimizes its net risk exposure resulting from such transactions. Fee income from customer swaps is included in other service charges, commissions and fees. As with other derivative instruments, we have credit risk for any nonperformance by counterparties.

Futures and options contracts primarily consist of: (1) Eurodollar futures contracts that allow us to extend the duration of certain overnight cash account balances. These contracts reference the 90-day LIBOR rate. Options contracts are used to economically hedge certain rate exposures of the underlying Eurodollar futures contracts. (2) Highly liquid federal funds futures contracts that are traded to manage interest rate risk on certain CDO securities. These identified mixed straddle contracts are executed to convert primarily three- and six-month fixed cash flows into cash flows that vary with daily fluctuations in interest rates. The accounts for both types of futures contracts are cash settled daily.

The remaining balances of any derivative instruments terminated prior to maturity, including amounts in AOCI for swap hedges, are accreted or amortized to interest income or expense over the period to their previously stated maturity dates.

Amounts in AOCI are reclassified to interest income as interest is earned on variable rate loans and as amounts for terminated hedges are accreted or amortized to earnings. For the 12 months following March 31, 2011, we estimate that additional projected gains of $18 million and accretion/amortization of $14 million, or a total of $32 million, will be reclassified.

Total Return Swap

On July 28, 2010, we entered into a total return swap and related interest rate swaps (“TRS”) with Deutsche Bank AG (“DB”) relating to a portfolio of $1.16 billion notional amount of our bank and insurance trust preferred CDOs. As a result of the TRS, DB assumed all of the credit risk of this CDO portfolio, providing timely payment of all scheduled payments of interest and principal when contractually due to the Company (without regard to acceleration or deferral events). Contractual due dates for principal are at each individual security’s maturity, which ranges from 2030 to 2042. We can cancel the TRS quarterly after the first year and remove individual securities on or after the end of the sixth year. Additionally, with the consent of DB, we can transfer the TRS to a third party in part or in whole. DB cannot cancel the TRS except in the event of nonperformance by the Company and under certain other circumstances customary to ISDA swap agreements.

This transfer of credit risk reduced the Company’s regulatory capital risk weighting for these investments. The underlying securities were originally rated primarily A and BBB but later downgraded, and carry some of the highest risk-weightings of the securities in the Company’s portfolio. As a result, the transaction reduced regulatory risk-weighted assets and improved the Company’s risk-based capital ratios.

This transaction did not qualify for hedge accounting and did not change the accounting for the underlying securities, including the quarterly analysis of OTTI and OCI. As a result, future potential OTTI, if any, associated with the underlying securities may not be offset by any valuation adjustment on the swap in the quarter in which OTTI is recognized and OTTI changes could result in reductions in our regulatory capital ratios, which could be material.

ZIONS BANCORPORATION AND SUBSIDIARIES

During the third quarter of 2010, we recorded a negative initial value for the TRS of $22.8 million and structuring costs of $11.6 million. The negative initial value is approximately equal to the first-year fees we will incur for the TRS (that is, during the period we are unable to cancel the transaction). The fair value of the TRS derivative liability was $10.5 million at March 31, 2011 and $15.9 million at December 31, 2010.

Both the fair value of the securities and the fair value of the TRS are dependent upon the projected credit-adjusted cash flows of the securities. Absent major changes in these projected cash flows, we expect the value of the TRS to continue to become less negative compared to the negative initial value as the period that we are unable to cancel the transaction shortens.

After the first year of the transaction, we expect to incur subsequent net quarterly costs of approximately $5.3 million under the TRS, including related interest rate swaps and scheduled payments of interest on the underlying CDOs, as long as the TRS remains in place for this CDO portfolio. The payments under the transaction generally include or arise from (1) payments by DB to the Company of all scheduled payments of interest and principal when contractually due to the Company, and payment by the Company to DB of a fixed quarterly or semiannual guarantee fee based on the notional amount of the CDO portfolio in the transaction; (2) an interest rate swap pursuant to which DB pays the Company a fixed interest rate and the Company pays to DB a floating interest rate (generally three-month LIBOR) on the notional amount of the CDO portfolio in the transaction; and (3) a third swap between the Company and DB included in the transaction in order to hedge each party’s exposure to change in interest rates over the life of the transaction. In addition, under the terms of the transaction, payments from the CDOs will continue to be made to the Company and retained by the Company; this recovery amount, plus assumed reinvestment earnings at an imputed interest rate, generally three-month LIBOR, will offset principal payments that DB would otherwise be required to make.

The net result of the payment streams described in the preceding paragraph is the approximate $5.3 million expense per quarter noted previously. Our estimated quarterly expense amount would be impacted by, among other things, changes in the composition of the CDO portfolio included in the transaction and changes over time in the forward LIBOR rate curve. Payments under the third swap began on the second payment date of each covered security. If the forward interest rates projected in mid-July 2010 occur, no net payment will be due by either party under this third swap. If rates increase more than projected, the payment will be to the Company from DB and if less than projected the payment will be the reverse. The Company’s costs are also subject to adjustment in the event of future changes in regulatory requirements applicable to DB, if we do not then elect to terminate the transaction. Should such cost increases occur in the first year, we may cancel the transaction with no payment due beyond the liability already incurred. Termination by the Company for such regulatory changes applicable to DB after year one will result in no payment by the Company.

At March 31, 2011, we completed a valuation process which resulted in an estimated fair value for the TRS under Level 3. The process utilized valuation inputs from two sources:

The Company built on its fair valuation process for the underlying CDO portfolio and utilized those same projected cash flows to quantify the extent and timing of payments to be received from the Trustee related to each CDO and in aggregate. These cash flows, plus assumed reinvestment earnings constitute an estimated recovery amount, the extent of which will offset DB’s required principal payments. The internal valuation utilized the Company’s estimate of each of the cash flows to/from each leg of the derivative and from each covered CDO through maturity and also through the first date on which we may terminate. For valuation purposes, we assumed that a market participant would cancel the TRS at the first opportunity if the TRS did not have a positive value based on the best estimates of cash flows through

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maturity. Consequently, the fair value approximated the amount of required payments up to the earliest termination date.

2)	A valuation from a market participant in possession of all relevant terms and costs of the TRS structure.

We considered the observable input or inputs from market participants as well as the results of our internal modeling to estimate the fair value of the TRS. We expect to continue the use of this methodology in subsequent periods.

7.	DEBT AND SHAREHOLDERS’ EQUITY

During the three months ended March 31, 2011, $85.8 million of convertible subordinated debt was converted into the Company’s preferred stock, consisting of 85,829 shares of Series C and 20 shares of Series A. The $100.4 million amount added to preferred stock included the transfer from common stock to preferred stock of $14.6 million of the intrinsic value of the beneficial conversion feature. The amount of this conversion feature was included with common stock at the time of the debt modification in June 2009. The remaining balance in common stock of this conversion feature was approximately $120.4 million at March 31, 2011. Accelerated discount amortization on the converted debt increased interest expense for the three months ended March 31, 2011 by approximately $41.0 million. At March 31, 2011, the balance at par of the convertible subordinated debt was $717.6 million and the remaining balance of the convertible debt discount was $331.7 million.

As of April 18, 2011, holders of approximately $138.5 million of subordinated convertible debt elected to convert their debt into depositary shares of the Company’s preferred stock. The anticipated conversion will add 200 shares of Series A and 138,269 shares of Series C to the Company’s preferred stock. Accelerated discount amortization from this conversion is estimated at $61.4 million.

During the three months ended March 31, 2011, we sold 1,067,540 shares of common stock for $25.5 million (average price of $23.89). The sales were made under a new equity distribution program announced February 10, 2011 to sell up to $200 million of common stock, which superseded all prior programs. Net of commissions and fees, the sales for the three-month period added $25.0 million to common stock.

Changes in accumulated other comprehensive income (loss) are summarized as follows:

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(In thousands)	Net unrealized gains (losses) on investments and other		Net unrealized gains (losses) on derivative instruments		Pension and post- retirement		Total

Three Months Ended March 31, 2011:
Balance at December 31, 2010	$	(456,264)	$	30,702	$	(35,734)	$	(461,296)
Other comprehensive income (loss), net of tax:
Net realized and unrealized holding losses, net of income tax benefit of $19,677		(31,788)						(31,788)
Reclassification for net losses included in earnings, net of income tax benefit of $1,210		1,954						1,954
Accretion of securities with noncredit-related impairment losses not expected to be sold, net of income tax expense of $16		26						26
Net unrealized losses, net of reclassification to earnings of $13,237 and income tax benefit of $5,156				(8,059)				(8,059)

Other comprehensive loss		(29,808)		(8,059)		–		(37,867)

Balance at March 31, 2011	$	(486,072)	$	22,643	$	(35,734)	$	(499,163)


Three Months Ended March 31, 2010:
Balance at December 31, 2009	$	(462,412)	$	68,059	$	(42,546)	$	(436,899)
Other comprehensive income (loss), net of tax:
Net realized and unrealized holding gains, net of income tax expense of $6,470		10,565						10,565
Reclassification for net losses included in earnings, net of income tax benefit of $11,486		18,521						18,521
Noncredit-related impairment losses on securities not expected to be sold, net of income tax benefit of $6,620		(10,687)						(10,687)
Accretion of securities with noncredit-related impairment losses not expected to be sold, net of income tax expense of $24		39						39
Net unrealized losses, net of reclassification to earnings of $22,406 and income tax benefit of $5,862				(9,716)				(9,716)

Other comprehensive income (loss)		18,438		(9,716)		–		8,722

Balance at March 31, 2010	$	(443,974)	$	58,343	$	(42,546)	$	(428,177)

8.	INCOME TAXES

The income tax expense rate for the first quarter of 2011 was increased by the non deductibility of a portion of the accelerated discount amortization from the conversion of subordinated debt to preferred stock during the quarter. During the first quarter of 2010, we surrendered certain bank-owned life insurance contracts and incurred taxes and penalties of approximately $34.2 million, which were included in income tax expense for the quarter.

The balance of net deferred tax assets was approximately $513 million at March 31, 2011, $540 million at December 31, 2010, and $533 million at March 31, 2010. We evaluate the net deferred tax assets on a regular basis to determine whether an additional valuation allowance is required. Based on this evaluation, and considering the weight of the positive evidence compared to the negative evidence, we have concluded that an additional valuation allowance is not required as of March 31, 2011.

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9.	FAIR VALUE

Fair Value Measurements

ASU No. 2010-06, Improving Disclosures about Fair Value Measurements, requires certain additional fair value disclosures under ASC 820, Fair Value Measurements and Disclosures, which began January 1, 2010. One of the new requirements did not become effective until January 1, 2011 and requires the gross, rather than net, basis for certain Level 3 rollforward information. The following information incorporates this new disclosure requirement.

Fair value is defined under ASC 820 as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. To measure fair value, a hierarchy has been established that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs. This hierarchy uses three levels of inputs to measure the fair value of assets and liabilities as follows:

Level 1 – Quoted prices in active markets for identical assets or liabilities; includes U.S. Treasury and other U.S. Government and agency securities actively traded in over-the-counter markets; mutual funds and stock; securities sold, not yet purchased; and derivatives.

Level 2 – Observable inputs other than Level 1 including quoted prices for similar assets or liabilities, quoted prices in less active markets, or other observable inputs that can be corroborated by observable market data; also includes derivative contracts whose value is determined using a pricing model with observable market inputs or can be derived principally from or corroborated by observable market data. This category generally includes U.S. Government and agency securities; municipal securities; CDO securities; mutual funds and stock; private equity investments; securities sold, not yet purchased; and derivatives.

Level 3 – Unobservable inputs supported by little or no market activity for financial instruments whose value is determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation; also includes observable inputs for nonbinding single dealer quotes not corroborated by observable market data. This category generally includes municipal securities; private equity investments, most CDO securities, and the total return swap.

We use fair value to measure certain assets and liabilities on a recurring basis when fair value is the primary measure for accounting. This is done primarily for AFS and trading investment securities; private equity investments; securities sold, not yet purchased; and derivatives. Fair value is used on a nonrecurring basis to measure certain assets when applying lower of cost or market accounting or when adjusting carrying values, such as for loans held for sale, impaired loans, and other real estate owned. Fair value is also used when evaluating impairment on certain assets, including HTM and AFS securities, goodwill, core deposit and other intangibles, long-lived assets, and for disclosures of certain financial instruments.

Available-for-sale and trading

AFS and trading investment securities are fair valued under Level 1 using quoted market prices when available for identical securities. When quoted prices are not available, fair values are determined under Level 2 using quoted prices for similar securities or independent pricing services that incorporate observable market data when possible. The largest portion of AFS securities include certain CDOs backed by trust preferred securities issued by banks and insurance companies and, to a lesser extent, by REITs. These securities are fair valued primarily under Level 3.

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U.S. Treasury, agencies and corporations

Valuation inputs utilized by the independent pricing service for those U.S. Treasury, agency and corporation securities under Level 2 include benchmark yields, reported trades, broker/dealer quotes, issuer spreads, benchmark securities, bids, offers, and reference data including market research publications. Also included are data from the vendor trading platform.

Municipal securities

Valuation inputs utilized by the independent pricing services for those municipal securities under Level 2 include the same inputs used for U.S. Treasury, agency and corporation securities. Also included are reported trades and material event notices from the Municipal Securities Rulemaking Board, plus new issue data. Municipal securities under Level 3 are fair valued similar to the auction rate securities discussed subsequently.

Trust preferred collateralized debt obligations

Substantially all the CDO portfolio is fair valued under Level 3 using an income-based cash flow modeling approach incorporating several methodologies that primarily include internal and third party models. In addition, each quarter we seek to obtain information for all actual trades of securities in this asset class. We consider this information to determine whether the comparability of the security and the orderliness of the trades make such reported prices suitable for inclusion as or consideration in our fair value estimates in accordance with ASU 2010-06.

Trust preferred CDO internal model: A licensed third party cash flow model, which requires the Company to input its own default assumptions, is used to estimate fair values of bank and insurance trust preferred CDOs. For privately owned banks, we utilize a statistical regression of quarterly regulatory ratios that we have identified as predictive of future bank failures to create a credit-specific probability of default (“PD”) for each issuer. The inputs are updated quarterly to include the most recent available financial ratios and the regression formula is updated periodically to utilize those financial ratios that have best predicted bank failures during this credit cycle (“ratio-based approach”). Our ratio-based approach, while generally referencing trailing quarter regulatory ratios, seeks to incorporate the most recent available information. During the first quarter of 2011, we utilized pro forma capital ratios for one deferring publicly traded bank in order to reflect the significant capital raise completed by this bank during the first quarter of 2011. The capital raise will be included in the bank’s normal regulatory filing in the subsequent quarter.

Prior to the fourth quarter of 2010 for publicly traded performing banks, we exclusively utilized a licensed third party proprietary reduced form model derived using logistic regression on a historical default database to produce PDs. This model requires equity valuation related inputs (along with other macro and issuer-specific inputs) to produce PDs, and therefore cannot be used for privately owned banks.

Nearly all of the failures within our predominantly bank CDO pools have come from those banks that have previously deferred the payment of interest on their trust preferred securities. The terms of the securities within the CDO pools generally allow for deferral of current interest for five years without causing default.

We have found that for publicly traded deferring banks, the ratio-based approach generally resulted in higher PDs than did the licensed third party proprietary reduced model for banks that subsequently failed. Therefore, in order to better project publicly traded bank failures, historically we utilized the higher of the PDs from our ratio-based approach and those from the licensed third party model for

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publicly traded deferring banks. During the fourth quarter of 2010, we began utilizing the same approach for publicly traded performing banks.

After identifying collateral level PDs, we modify the PDs of deferring collateral by a calibration adjustment. The calibration adjustment was calculated as the average difference between the actual 100% default probability for all banks failing in the previous three quarters (both CDO and non-CDO banks) and the PD generated for each deferring bank using the ratio-based approach. Ratio-based PDs for deferring banks were first used in the fourth quarter of 2009 when the adjustment upward was 7.8%. The calibration adjustments upward for 2010 were 6.6% for the first and second quarters, 5.1% for the third quarter, and 4.8% for the fourth quarter, from the level produced by the collateral level PD in the relevant quarter. For the first quarter of 2011, the calibration adjustment upward was 2.5%.

The resulting effective PDs at March 31, 2011 ranged from 100% for the “worst” deferring banks to 2.5% for the “best” deferring banks. The weighted average assumed loss rate on deferring collateral was 35% at March 31, 2011, and 30% and 44% at December 31, 2010 and 2009, respectively. This loss rate is calculated as a percentage of the par amount of deferring collateral within a pool that is expected to default prior to the end of a five-year deferral period. The increase in the assumed loss rate for deferring banks at March 31, 2011 was due to a general deterioration in financial ratios and to an updated PD regression.

Prior to March 31, 2011, we had little evidence with which to assess the likelihood of previously deferring collateral returning to a current status prior to or at the end of the allowable five-year deferral period. Accordingly, our third party cash flow model assumed that the par amount of deferring collateral within each pool that did not default would be paid off at par after five years of deferral. No receipt of back interest or return to current status was assumed.

During the first quarter of 2011, we observed improvement in the performance of certain deferring collateral such that payment of interest resumed and interest payments that had been deferred for one or more quarters were paid in full. By the end of the first quarter of 2011, this pattern was seen in 7% of all surviving bank deferrals within our CDO pools, although none had reached the end of the allowable deferral period. Accordingly, expectations have been revised regarding the extent of deferring collateral ultimately repaying contractually due interest. Effective March 31, 2011, the third party cash flow valuation model was enhanced and incorporated these revised expectations.

The licensed third party cash flow model now projects the expected cash flows for CDO tranches, including the expectation that deferrals that do not default will pay their contractually required back interest and return to a current status at the end of five years. Estimates of expected loss for the individual pieces of underlying collateral are aggregated to arrive at a pool-level expected loss rate for each CDO. These loss assumptions are applied to the CDO’s structure to generate cash flow projections for each tranche of the CDO. The presence of OTTI is identified and the amount of the credit component of OTTI is calculated by discounting the resulting loss-adjusted cash flows at each tranche’s coupon rate and comparing that value to the Company’s amortized cost of the tranche. The fair value of each tranche is determined by discounting its resultant loss-adjusted cash flows with appropriate current market-based discount rates.

Prior to March 31, 2011, the discount rate assumption used for valuation purposes for each CDO tranche was derived from trading yields on publicly traded trust preferred securities and projected PDs on the underlying issuers. The data set generally included one or more publicly-traded trust preferred securities in deferral with regard to the payment of current interest. The effective yields on the traded securities, including the deferring securities, were then used to determine a relationship between the effective yield and expected loss. Expected loss for this purpose is a measure of the variability of cash flows from the mean estimate of cash flow across all Monte Carlo simulations. This relationship was then considered along with other third party or market data in order to identify

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appropriate discount rates to be applied to the CDOs.

During the first quarter of 2011, we observed trades in our CDO tranches which appeared to be orderly (that is, not distressed or forced); in addition we observed trades whose orderliness could not be definitively refuted. Trading data was generally limited to a single transaction in each of several of our original AAA-rated tranches and several of our A-rated tranches. In accordance with ASU 2010-06, this market price information was incorporated into our valuation process. The trading levels and effective yields of each tranche were included along with the trading yields of publicly traded trust preferred securities in order to identify the relationship between effective yield and expected loss as described above. This relationship was then used to identify appropriate discount rates to be applied to our CDO tranches.

Our March 31, 2011 valuations for bank and insurance tranches utilized a discount rate range of LIBOR+ 3.75% for the highest quality/most over-collateralized tranches and LIBOR+28.9% for the lowest credit quality tranche in order to reflect market level assumptions for structured finance securities. For tranches that include bank collateral, the discount rate was at least LIBOR + 5.54% for the highest quality/most over-collateralized tranches. These discount rates are applied to already credit-adjusted cash flows for each tranche. The range of the projected cumulative credit loss of the CDO pools varies extensively across pools, and at March 31, 2011 ranged between 7.4% and 66.6%.

CDO tranches with greater uncertainty in their cash flows are discounted at higher rates than those that market participants would use for tranches with more stable expected cash flows (e.g., as a result of more subordination and/or better credit quality in the underlying collateral). The high end of the discount rate spectrum was applied to tranches in which minor changes in default assumption timing produced substantial deterioration in tranche cash flows. These discount rates are applied to credit-stressed cash flows, which constitute each tranche’s expected cash flows; discount rates are not applied to a hypothetical contractual cash flow.

Certain REIT and ABS CDOs are fair valued by third party services using their proprietary models. These models utilize relevant data assumptions, which we evaluate for reasonableness. These assumptions include, but are not limited to, discount rates, PDs, loss-given-default rates, over-collateralization levels, and rating transition probability matrices from rating agencies. See subsequent discussion regarding key model inputs and assumptions. The model prices obtained from third party services are evaluated for reasonableness including quarter to quarter changes in assumptions and comparison to other available data, which included third party and internal model results and valuations.

Auction rate securities

Auction rate securities are fair valued under Level 3 using a market approach based on various market data inputs, including AAA municipal and corporate bond yield curves, credit ratings and leverage of each closed-end fund, and market yields for municipal bonds and commercial paper.

Private equity investments

Private equity investments valued under Level 2 on a recurring basis are investments in partnerships that invest in certain financial services and real estate companies, some of which are publicly traded. Fair values are determined from net asset values, or their equivalents, provided by the partnerships. These fair values are determined on the last business day of the month using values from the primary exchange. In the case of illiquid or nontraded assets, the partnerships obtain fair values from independent sources. We have no unfunded commitments to these partnerships and redemption is available annually.

Private equity investments valued under Level 3 on a recurring basis are recorded initially at acquisition

cost, which is considered the best indication of fair value unless there have been material subsequent positive or negative developments that justify an adjustment in the fair value estimate. Subsequent adjustments to recorded fair values are based as necessary on current and projected financial performance, recent financing activities, economic and market conditions, market comparables, market liquidity, sales restrictions, and other factors.

Derivatives

Derivatives are fair valued according to their classification as either exchange-traded or over-the-counter (“OTC”). Exchange-traded derivatives consist of forward currency exchange contracts that have been fair valued under Level 1 because they are traded in active markets. OTC derivatives, including those for customers, consist of interest rate swaps and options. These derivatives are fair valued under Level 2 using third party services. Observable market inputs include yield curves (the LIBOR swap curve and applicable basis swap curves), foreign exchange rates, commodity prices, option volatilities, counterparty credit risk, and other related data. Credit valuation adjustments are required to reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk. These adjustments are determined generally by applying a credit spread for the counterparty or the Company as appropriate to the total expected exposure of the derivative. Amounts disclosed in the following schedules include the foreign currency exchange contracts that are not included in Note 6 in accordance with ASC 815. The amounts are also presented net of the cash collateral offsets discussed in Note 6. Also see the discussion in Note 6 for the determination of fair value of the total return swap.

Securities sold, not yet purchased

Securities sold, not yet purchased are fair valued under Level 1 when quoted prices are available for the securities involved. Those under Level 2 are fair valued similar to trading account investment securities.

Assets and liabilities measured at fair value by class on a recurring basis are summarized as follows:

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(In thousands)	March 31, 2011
	Level 1		Level 2		Level 3		Total

ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	724,650	$	1,698,178			$	2,422,828
Municipal securities				124,718	$	19,057		143,775
Asset-backed securities:
Trust preferred – banks and insurance				1,737		1,183,999		1,185,736
Trust preferred – real estate investment trusts						19,714		19,714
Auction rate						109,244		109,244
Other (including ABS CDOs)				9,429		69,487		78,916
Mutual funds and stock		163,869		6,260				170,129

		888,519		1,840,322		1,401,501		4,130,342
Trading account				56,549				56,549
Other noninterest-bearing investments:
Private equity				4,779		142,547		147,326
Other assets:
Derivatives:
Interest rate related and other				22,632				22,632
Interest rate swaps for customers				53,480				53,480
Foreign currency exchange contracts		5,082						5,082

		5,082		76,112				81,194

	$	893,601	$	1,977,762	$	1,544,048	$	4,415,411


LIABILITIES
Securities sold, not yet purchased	$	66,737	$	34,669			$	101,406
Other liabilities:
Derivatives:
Interest rate related and other				1,214				1,214
Interest rate swaps for customers				56,180				56,180
Foreign currency exchange contracts		3,595						3,595
Total return swap					$	10,511		10,511

		3,595		57,394		10,511		71,500
Other						442		442

	$	70,332	$	92,063	$	10,953	$	173,348

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(In thousands)	March 31, 2010
	Level 1		Level 2		Level 3		Total

ASSETS
Investment securities:
Available-for-sale:
U.S. Treasury, agencies and corporations	$	26,635	$	1,400,403			$	1,427,038
Municipal securities				171,773	$	63,206		234,979
Asset-backed securities:
Trust preferred – banks and insurance				1,671		1,351,269		1,352,940
Trust preferred – real estate investment trusts						23,854		23,854
Auction rate						156,795		156,795
Other (including ABS CDOs)				13,962		57,373		71,335
Mutual funds and stock		163,329		6,828				170,157

		189,964		1,594,637		1,652,497		3,437,098
Trading account				50,698				50,698
Other noninterest-bearing investments:
Private equity				5,605		161,884		167,489
Other assets:
Derivatives:
Interest rate related and other				48,375				48,375
Interest rate swaps for customers				70,031				70,031
Energy commodity swaps for customers				9,258				9,258
Foreign currency exchange contracts		3,725						3,725

		3,725		127,664				131,389

	$	193,689	$	1,778,604	$	1,814,381	$	3,786,674


LIABILITIES
Securities sold, not yet purchased			$	47,890			$	47,890
Other liabilities:
Derivatives:
Interest rate related and other				3,935				3,935
Interest rate swaps for customers				71,853				71,853
Energy commodity swaps for customers				2,948				2,948
Foreign currency exchange contracts	$	3,657						3,657

		3,657		78,736				82,393
Other					$	553		553

	$	3,657	$	126,626	$	553	$	130,836

Selected additional information regarding key model inputs and assumptions used to fair value certain asset-backed securities by class under Level 3 include the following at March 31, 2011:

(Dollars in thousands)

Fair value at
March 31,
2011

Valuation
approach

Constant default
rate (“CDR”)

Loss
severity

Prepayment rate

Asset-backed securities:

Trust preferred – predominantly banks

986,280

Income

Pool specific³

100%

Pool specific⁷

Trust preferred – predominantly insurance

358,641

Income

Pool specific⁴

100%

4.5% per year

Trust preferred – individual banks

19,557

Market

1,364,478

Trust preferred – real estate investment trusts

19,714

Income

Pool specific⁵

22-100%

0% per year

Other (including ABS CDOs)

95,328

Income

Collateral specific

⁶

19-100%

Collateral weighted average life

¹	Includes $1,185.7 million of AFS securities and $178.7 million of HTM securities.

²	Includes $78.9 million of AFS securities and $16.4 million of HTM securities.

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³	CDR ranges: yr 1 – 0% to 10.74%; yrs 2-5 – 0% to 0.36%; yrs 6 to maturity – 0.30% to 0.37%.

⁴	CDR ranges: yr 1 – 0.13% to 8.91%; yrs 2-5 – 0.13% to 0.18%; yrs 6 to maturity – 0.30%.

⁵	CDR ranges: yr 1 – 4.4% to 8.6%; yrs 2-3 – 3.8% to 5.8%; yrs 4-6 – 1.0%; yrs 6 to maturity – 0.50%.

⁶	These are predominantly ABS CDOs whose collateral is rated. CDR and loss severities are built up from the loan level and vary by collateral ratings, asset class, and vintage.

⁷	CPR ranges: yrs 1-3 – 0% to 4.99%; yrs 4-5 – 0% to 14.97%; yrs 6 to maturity – 2.0%.

In the following discussion of our investment portfolio, we have included certain credit rating information because the information is one indication of the degree of credit risk to which we are exposed, and significant changes in ratings classifications for our investment portfolio could indicate an increased level of risk for us.

The following presents the percentage of total fair value of predominantly bank trust preferred CDOs by vintage year (origination date) according to original rating:


(Dollars in thousands)
Vintage year	Fair value at March 31, 2011		Percentage of total fair value									Percentage of total fair value by vintage
Vintage year	Fair value at March 31, 2011		AAA			A			BBB			Percentage of total fair value by vintage
2001	$	96,853		8.9	%		0.9	%		0.1	%		9.9	%
2002		220,551		19.7			2.6			–			22.3
2003		375,393		25.2			12.6			0.3			38.1
2004		177,732		6.4			11.6			–			18.0
2005		19,433		0.9			0.8			0.3			2.0
2006		63,341		2.5			3.4			0.5			6.4
2007		32,977		3.3			–			–			3.3

	$	986,280		66.9	%		31.9	%		1.2	%		100.0	%

The following reconciles the beginning and ending balances of assets and liabilities that are measured at fair value by class on a recurring basis using Level 3 inputs:


	Level 3 Instruments
	Three Months Ended March 31, 2011
(In thousands)	Municipal securities		Trust preferred – banks and insurance		Trust preferred – REIT		Auction rate		Other asset-backed		Private equity investments		Derivatives		Other liabilities

Balance at December 31, 2010	$	22,289	$	1,241,694	$	19,165	$	109,609	$	69,630	$	141,690	$	(15,925)	$	(561)
Total net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale		169		1,477				8		39
Dividends and other investment income												707
Equity securities gains, net												897
Fixed income securities gains (losses), net		18		3,468		(3,605)		7		7
Net impairment losses on investment securities				(1,820)		(1,285)
Other noninterest expense																119
Other comprehensive income (loss)		(299)		(51,041)		5,977		(20)		1,324
Purchases												3,333
Sales		(895)		(941)		(538)		(135)				(3,277)
Redemptions and paydowns		(2,225)		(8,838)				(225)		(1,513)		(803)		5,414

Balance at March 31, 2011	$	19,057	$	1,183,999	$	19,714	$	109,244	$	69,487	$	142,547	$	(10,511)	$	(442)

ZIONS BANCORPORATION AND SUBSIDIARIES


	Level 3 Instruments
	Three Months Ended March 31, 2010
(In thousands)	Municipal securities		Trust preferred – banks and insurance		Trust preferred – REIT		Auction rate		Other asset-backed		Private equity investments		Other liabilities

Balance at December 31, 2009	$	64,314	$	1,359,444	$	24,018	$	159,440	$	62,430	$	158,941	$	(522)
Total net gains (losses) included in:
Statement of income:
Accretion of purchase discount on securities available-for-sale		91		1,233		50		55		84
Dividends and other investment income (loss)												(1,021)
Equity securities gains, net												210
Fixed income securities gains, net		29		587				227		355
Net impairment losses on investment securities				(27,226)		(2,082)				(1,944)
Other noninterest expense														(31)
Other comprehensive income (loss)		(102)		19,886		1,868		773		5,551
Purchases, sales, issuances, and settlements, net		(1,126)		(2,655)				(3,700)		(9,103)		3,754

Balance at March 31, 2010	$	63,206	$	1,351,269	$	23,854	$	156,795	$	57,373	$	161,884	$	(553)

The preceding reconciling amounts using Level 3 inputs include the following realized gains (losses):


(In thousands)	Three Months Ended March 31,
	2011			2010

Dividends and other investment income	$	1,631		$	904
Equity securities losses, net		–			(252	)
Fixed income securities gains (losses), net		(105	)		1,198

Assets with fair value changes that are measured at fair value by class on a nonrecurring basis are summarized as follows:


(In thousands)	Fair value at March 31, 2011								Gains (losses) from fair value changes
	Level 1		Level 2		Level 3		Total		Three months ended March 31, 2011

ASSETS
Impaired loans			$	58,782			$	58,782	$	(3,754)
Other real estate owned				115,432				115,432		(21,621)

	$	–	$	174,214	$	–	$	174,214	$	(25,375)


(In thousands)	Fair value at March 31, 2010								Gains (losses) from fair value changes
	Level 1		Level 2		Level 3		Total		Three months ended March 31, 2010

ASSETS
HTM securities adjusted for OTTI					$	3,140	$	3,140	$	42
Impaired loans			$	343,002				343,002		(72,017)
Other real estate owned				92,664				92,664		(29,974)

	$	–	$	435,666	$	3,140	$	438,806	$	(101,949)

ZIONS BANCORPORATION AND SUBSIDIARIES

Impaired loans that are collateral-dependent are fair valued under Level 2 based on the fair value of the collateral. Impaired loans not collateral-dependent are fair valued based on the present value of future cash flows discounted at the expected coupon rates over the lives of the loans. Because the loans were not discounted at market interest rates, the valuations do not represent fair value under ASC 820 and have been excluded from the nonrecurring fair value balance in the preceding tables. Impaired loans were reported as being fair valued under Level 3 in certain previous periods; however, upon reconsideration, the fair value process for impaired loans that are collateral dependant is considered to be substantially the same as for other real estate owned, and accordingly, has been included under Level 2.

Other real estate owned is fair valued under Level 2 at the lower of cost or fair value based on property appraisals at the time the property is recorded in OREO and as appropriate thereafter.

Fair Value Option

At March 31, 2011, no financial assets or liabilities were recorded at fair value under the fair value option allowed in ASC 825, Financial Instruments.

Fair Value of Certain Financial Instruments

Following is a summary of the carrying values and estimated fair values of certain financial instruments:


	March 31, 2011				March 31, 2010
(In thousands)	Carrying value		Estimated fair value		Carrying value		Estimated fair value

Financial assets:
HTM investment securities	$	820,636	$	758,169	$	902,902	$	856,256
Loans and leases (including loans held for sale), net of allowance		35,391,049		34,857,731		37,564,350		37,165,638

Financial liabilities:
Time deposits		3,944,492		3,976,682		5,003,362		5,058,224
Foreign deposits		1,488,807		1,489,852		1,647,898		1,649,308
Other short-term borrowings		182,167		183,857		178,435		179,156
Long-term debt (less fair value hedges)		1,900,007		2,345,786		2,000,504		2,506,788

This summary excludes financial assets and liabilities for which carrying value approximates fair value. For financial assets, these include cash and due from banks and money market investments. For financial liabilities, these include demand, savings and money market deposits, and federal funds purchased and security repurchase agreements. The estimated fair value of demand, savings and money market deposits is the amount payable on demand at the reporting date. Carrying value is used because the accounts have no stated maturity and the customer has the ability to withdraw funds immediately. Also excluded from the summary are financial instruments recorded at fair value on a recurring basis, as previously described.

The fair value of loans is estimated by discounting future cash flows on “pass” grade loans using the LIBOR yield curve adjusted by a factor which reflects the credit and interest rate risk inherent in the loan. These future cash flows are then reduced by the estimated “life-of-the-loan” aggregate credit losses in the loan portfolio. These adjustments for lifetime future credit losses are highly judgmental because the Company does not have a validated model to estimate lifetime credit losses on large portions of its loan portfolio. The estimate of lifetime credit losses is adjusted quarterly as necessary to reflect the most recent loss experience during the current prolonged cycle of economic weakness. Impaired loans are not included in this credit adjustment as they are already considered to be held at fair value. Loans, other than those held for sale, are not normally purchased and sold by the Company, and there are no active trading markets for most of this portfolio.

ZIONS BANCORPORATION AND SUBSIDIARIES

The fair value of time and foreign deposits, and other short-term borrowings, is estimated by discounting future cash flows using the LIBOR yield curve. The estimated fair value of long-term debt is based on actual market trades (i.e., an asset value) when available, or discounting cash flows using the LIBOR yield curve adjusted for credit spreads.

These fair value disclosures represent our best estimates based on relevant market information and information about the financial instruments. Fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of the various instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision. Changes in the above methodologies and assumptions could significantly affect the estimates.

Further, certain financial instruments and all nonfinancial instruments are excluded from the applicable disclosure requirements. Therefore, the fair value amounts shown in the schedule do not, by themselves, represent the underlying value of the Company as a whole.

10.	GUARANTEES, COMMITMENTS AND CONTINGENCIES

The following are guarantees issued by the Company:


(In thousands)	March 31, 2011		December 31, 2010		March 31, 2010

Standby letters of credit:
Financial	$	964,769	$	921,257	$	1,039,787
Performance		180,036		185,854		205,717

	$	1,144,805	$	1,107,111	$	1,245,504

The Company’s 2010 Annual Report on Form 10-K contains further information about these letters of credit including their terms and collateral requirements. At March 31, 2011, the Company had recorded approximately $15.0 million as a liability for these guarantees, which consisted of $9.6 million attributable to the reserve for unfunded lending commitments and $5.4 million of deferred commitment fees.

As of March 31, 2011, the Parent has guaranteed approximately $300.0 million of debt of affiliated trusts issuing trust preferred securities.

We are subject to litigation in court and arbitral proceedings, as well as proceedings and other actions brought or considered by governmental and self-regulatory agencies. At any given time, such litigation, proceedings and actions typically include claims relating to lending, deposit and other customer relationships, vendor and contractual issues, employee matters, intellectual property matters, personal injuries and torts, and regulatory compliance. Based on our current knowledge and consultations with legal counsel, we believe that our current estimated liability for these matters, determined in accordance with ASC 450-20, Loss Contingencies, is adequate and that the amount of any incremental liability arising from litigation and governmental and self-regulatory actions will not have a material adverse effect on our consolidated financial condition, cash flows, or results of operations. However, it is possible that the ultimate resolution of our litigation and governmental and self-regulatory actions may differ from our current assessments, based on facts and legal theories not currently known or fully appreciated, unpredicted decisions by courts, arbitrators or governmental or self-regulatory agencies, or other factors, and could have a material adverse effect on our results of operations for a particular reporting period depending, in part, on our results for that period.

ZIONS BANCORPORATION AND SUBSIDIARIES

11.	RETIREMENT PLANS

The following discloses the net periodic benefit cost (credit) and its components for the Company’s pension and postretirement plans:


	Pension benefits				Supplemental retirement benefits				Postretirement benefits
(In thousands)	Three Months Ended March 31,
	2011		2010		2011		2010		2011		2010

Service cost	$	97	$	53	$	–	$	–	$	8	$	9
Interest cost		4,375		2,161		140		171		14		10
Expected return on plan assets		(6,522)		(2,053)
Settlement loss						–		15
Amortization of prior service cost (credit)						31		31		(61)		(61)
Amortization of net actuarial (gain) loss		2,737		1,488		(4)		20		(31)		(37)

Net periodic benefit cost (credit)	$	687	$	1,649	$	167	$	237	$	(70)	$	(79)

As disclosed in the Company’s 2010 Annual Report on Form 10-K, the Company has frozen its participation and benefit accruals for the pension plan and its contributions for individual benefit payments in the postretirement benefit plan.

12.	OPERATING SEGMENT INFORMATION

We manage our operations and prepare management reports and other information with a primary focus on geographical area. As of March 31, 2011, we operate eight community/regional banks in distinct geographical areas. Performance assessment and resource allocation are based upon this geographical structure. Zions Bank operates 106 branches in Utah and 27 branches in Idaho. CB&T operates 104 branches in California. Amegy operates 83 branches in Texas. NBA operates 77 branches in Arizona. NSB operates 54 branches in Nevada. Vectra operates 38 branches in Colorado and one branch in New Mexico. TCBW operates one branch in the state of Washington. TCBO operates one branch in Oregon. Additionally, each subsidiary bank, except for NSB and TCBO, operates a foreign branch in the Grand Cayman Islands.

The operating segment identified as “Other” includes the Parent, Zions Management Services Company (“ZMSC”), certain nonbank financial service subsidiaries, TCBO, and eliminations of transactions between segments. ZMSC provides internal technology and operational services to affiliated operating businesses of the Company. ZMSC charges most of its costs to the affiliates on an approximate break-even basis.

The accounting policies of the individual operating segments are the same as those of the Company. Transactions between operating segments are primarily conducted at fair value, resulting in profits that are eliminated for reporting consolidated results of operations. Operating segments pay for centrally provided services based upon estimated or actual usage of those services.

ZIONS BANCORPORATION AND SUBSIDIARIES

The following table presents selected operating segment information for the three months ended March 31, 2011 and 2010:


(In millions)	Zions Bank				CB&T				Amegy				NBA				NSB
(In millions)	2011		2010		2011		2010		2011		2010		2011		2010		2011		2010

CONDENSED INCOME STATEMENT
Net interest income	$	172.6	$	180.3	$	128.7	$	113.4	$	93.0	$	100.4	$	43.1	$	45.2	$	33.1	$	36.1
Provision for loan losses		39.0		87.1		11.2		41.9		3.3		50.8		0.7		21.2		0.8		52.7

Net interest income after provision for loan losses		133.6		93.2		117.5		71.5		89.7		49.6		42.4		24.0		32.3		(16.6)
Net impairment losses on investment securities		–		–		–		–		–		–		–		–		–		–
Loss on sale of investment securities to Parent		–		(54.8)		(13.5)		–		–		–		–		–		–		–
Other noninterest income		49.5		44.2		38.4		26.3		34.0		35.3		8.5		7.5		8.6		9.4
Noninterest expense		128.4		129.3		90.3		75.3		79.9		74.8		45.1		39.7		34.6		36.5

Income (loss) before income taxes		54.7		(46.7)		52.1		22.5		43.8		10.1		5.8		(8.2)		6.3		(43.7)
Income tax expense (benefit)		18.2		3.0		20.5		12.6		14.2		2.3		2.3		(3.2)		2.1		(15.4)

Net income (loss)		36.5		(49.7)		31.6		9.9		29.6		7.8		3.5		(5.0)		4.2		(28.3)
Net income (loss) applicable to noncontrolling interests		–		0.1		–		–		–		–		–		–		–		–

Net income (loss) applicable to controlling interest		36.5		(49.8)		31.6		9.9		29.6		7.8		3.5		(5.0)		4.2		(28.3)
Preferred stock dividends		–		–		–		–		–		–		–		–		–		–

Net earnings (loss) applicable to common shareholders	$	36.5	$	(49.8)	$	31.6	$	9.9	$	29.6	$	7.8	$	3.5	$	(5.0)	$	4.2	$	(28.3)


AVERAGE BALANCE SHEET DATA
Total assets	$	16,167	$	18,813	$	10,766	$	11,044	$	11,221	$	11,435	$	4,428	$	4,444	$	4,099	$	4,104
Net loans and leases		12,829		13,818		8,347		8,828		7,571		8,232		3,273		3,527		2,424		2,703
Total deposits		13,492		13,965		9,213		9,688		8,700		9,095		3,711		3,712		3,488		3,464
Shareholder’s equity:
Preferred equity		480		460		262		262		488		390		305		404		360		360
Common equity		1,293		1,292		1,190		1,135		1,510		1,439		324		232		227		283
Noncontrolling interests		–		1		–		–		–		–		–		–		–		–
Total shareholder’s equity		1,773		1,753		1,452		1,397		1,998		1,829		629		636		587		643

	Vectra				TCBW				Other				Consolidated Company
	2011		2010		2011		2010		2011		2010		2011		2010

CONDENSED INCOME STATEMENT
Net interest income	$	25.8	$	27.3	$	7.6	$	7.4	$	(80.0)	$	(54.8)	$	423.9	$	455.3
Provision for loan losses		3.1		8.9		1.9		2.9		–		0.1		60.0		265.6

Net interest income after provision for loan losses		22.7		18.4		5.7		4.5		(80.0)		(54.9)		363.9		189.7
Net impairment losses on investment securities		–		(0.2)		–		–		(3.1)		(31.1)		(3.1)		(31.3)
Loss on sale of investment securities to Parent		–		–		–		–		13.5		54.8		–		–
Other noninterest income		5.5		8.7		0.5		0.5		(7.8)		7.0		137.2		138.9
Noninterest expense		24.7		21.7		4.5		4.2		0.9		7.6		408.4		389.1

Income (loss) before income taxes		3.5		5.2		1.7		0.8		(78.3)		(31.8)		89.6		(91.8)
Income tax expense (benefit)		1.0		6.2		0.5		0.2		(21.8)		(34.4)		37.0		(28.7)

Net income (loss)		2.5		(1.0)		1.2		0.6		(56.5)		2.6		52.6		(63.1)
Net income (loss) applicable to noncontrolling interests		–		–		–		–		(0.2)		(3.0)		(0.2)		(2.9)

Net income (loss) applicable to controlling interest		2.5		(1.0)		1.2		0.6		(56.3)		5.6		52.8		(60.2)
Preferred stock dividends		–		–		–		–		(38.0)		(26.3)		(38.0)		(26.3)

Net earnings (loss) applicable to common shareholders	$	2.5	$	(1.0)	$	1.2	$	0.6	$	(94.3)	$	(20.7)	$	14.8	$	(86.5)


AVERAGE BALANCE SHEET DATA
Total assets	$	2,253	$	2,410	$	852	$	825	$	919	$	(1,523)	$	50,705	$	51,552
Net loans and leases		1,783		1,924		568		575		(127)		61		36,668		39,668
Total deposits		1,873		1,993		669		617		(557)		(691)		40,589		41,843
Shareholder’s equity:
Preferred equity		70		65		15		15		97		(447)		2,077		1,509
Common equity		202		201		70		70		(173)		(423)		4,643		4,229
Noncontrolling interests		–		–		–		–		(1)		15		(1)		16
Total shareholder’s equity		272		266		85		85		(77)		(855)		6,719		5,754

ZIONS BANCORPORATION AND SUBSIDIARIES

ITEM 2.

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

FORWARD-LOOKING INFORMATION

Statements in this Quarterly Report on Form 10-Q that are based on other than historical data are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements provide current expectations or forecasts of future events and include, among others:

•

statements with respect to the beliefs, plans, objectives, goals, guidelines, expectations, anticipations, and future financial condition, results of operations and performance of Zions Bancorporation (“the parent”) and its subsidiaries (collectively “the Company,” “Zions,” “we,” “our,” “us”);

•

statements preceded by, followed by or that include the words “may,” “could,” “should,” “would,” “believe,” “anticipate,” “estimate,” “expect,” “intend,” “plan,” “projects,” or similar expressions.

These forward-looking statements are not guarantees of future performance, nor should they be relied upon as representing management’s views as of any subsequent date. Forward-looking statements involve significant risks and uncertainties and actual results may differ materially from those presented, either expressed or implied, including, but not limited to, those presented in the Management’s Discussion and Analysis. Factors that might cause such differences include, but are not limited to:

•

the Company’s ability to successfully execute its business plans, manage its risks, and achieve its objectives;

•

changes in political and economic conditions, including without limitation the political and economic effects of the current economic crisis, delay of recovery from the current economic crisis, and other major developments, including wars, military actions, and terrorist attacks;

•

changes in financial market conditions, either internationally, nationally or locally in areas in which the Company conducts its operations, including without limitation reduced rates of business formation and growth, commercial and residential real estate development and real estate prices;

•

fluctuations in markets for equity, fixed-income, commercial paper and other securities, including availability, market liquidity levels, and pricing;

•

changes in interest rates, the quality and composition of the loan and securities portfolios, demand for loan products, deposit flows and competition;

•

acquisitions and integration of acquired businesses;

•

increases in the levels of losses, customer bankruptcies, bank failures, claims, and assessments;

•

changes in fiscal, monetary, regulatory, trade and tax policies and laws, and regulatory assessments and fees, including policies of the U.S. Department of Treasury, the Board of Governors of the Federal Reserve Board System, and the FDIC;

•

the Company’s participation or lack of participation in, or exit from, governmental programs implemented under the EESA and the ARRA, including without limitation the TARP and the CPP and the impact of

ZIONS BANCORPORATION AND SUBSIDIARIES

such programs and related regulations on the Company and on international, national, and local economic and financial markets and conditions;

•

the impact of the EESA and the ARRA and related rules and regulations, and changes in those rules and regulations, on the business operations and competitiveness of the Company and other participating American financial institutions, including the impact of the executive compensation limits of these acts, which may impact the ability of the Company and other American financial institutions to retain and recruit executives and other personnel necessary for their businesses and competitiveness;

•

the impact of the financial reform bill, known as the Dodd-Frank Wall Street reform and Consumer Protection Act, and rules and regulations thereunder, most of which have not yet been promulgated;

•

new capital and liquidity requirements, which U.S. regulatory agencies are expected to establish in response to new international standards known as Basel III;

•

continuing consolidation in the financial services industry;

•

new litigation or changes in existing litigation;

•

success in gaining regulatory approvals, when required;

•

changes in consumer spending and savings habits;

•

increased competitive challenges and expanding product and pricing pressures among financial institutions;

•

demand for financial services in the Company’s market areas;

•

inflation and deflation;

•

technological changes and the Company’s implementation of new technologies;

•

the Company’s ability to develop and maintain secure and reliable information technology systems;

•

legislation or regulatory changes which adversely affect the Company’s operations or business;

•

the Company’s ability to comply with applicable laws and regulations;

•

changes in accounting policies or procedures as may be required by the Financial Accounting Standards Board or regulatory agencies; and

•

increased costs of deposit insurance and changes with respect to FDIC insurance coverage levels.

Except to the extent required by law, the Company specifically disclaims any obligation to update any factors or to publicly announce the result of revisions to any of the forward-looking statements included herein to reflect future events or developments.

ZIONS BANCORPORATION AND SUBSIDIARIES

CRITICAL ACCOUNTING POLICIES AND SIGNIFICANT ESTIMATES

The Company has made no significant changes in its critical accounting policies and significant estimates from those disclosed in its 2010 Annual Report on Form 10-K.

RESULTS OF OPERATIONS

The Company reported net earnings applicable to common shareholders of $14.8 million or $0.08 per diluted share for the first quarter of 2011 compared to a net loss applicable to common shareholders of $86.5 million or $0.57 per diluted share for the first quarter of 2010. The improved result was mainly caused by the following favorable changes:

•

$205.6 million decrease in the provision for loan losses;

•

$28.2 million decrease in net impairment losses on investment securities;

•

$17.8 million increase in other noninterest income; and

•

$8.5 million decrease in other real estate expense.

The impact of these items was partially offset by the following:

•

$65.7 million increase in income tax expense;

•

$31.4 million decrease in net interest income;

•

$14.5 million decrease in gain on subordinated debt exchange;

•

$11.7 million increase in preferred stock dividends;

•

$11.9 million increase in other noninterest expense;

•

$10.7 million increase in salaries and employee benefits;

•

$10.6 million increase in the provision for unfunded lending commitments; and

•

$7.1 million decrease in service charges and fees on deposit accounts.

During the second quarter of 2009, the Company executed a subordinated debt modification and exchange transaction. The original discount on the convertible subordinated debt was $679 million and the remaining discount at March 31, 2011 was $332 million. It included the following components:

•

The fair value discount on the debt, and

•

The value of the beneficial conversion feature which added the right of the debt holder to convert the debt into preferred stock.

The discount associated with the convertible subordinated debt is amortized to interest expense, a noncash expense, using the interest method over the remaining terms of the subordinated debt. When holders of the convertible subordinated notes convert to preferred stock, the rate of amortization is accelerated by immediately expensing any unamortized discount associated with the converted debt.

Excluding the impact of these noncash expenses, income before income taxes and subordinated debt conversions for the first three months of 2011 increased to $143.7 million compared to a loss of $65.8 million in the first quarter of 2010.

ZIONS BANCORPORATION AND SUBSIDIARIES


	Three Months Ended
(In thousands)	March 31, 2011		December 31, 2010		September 30, 2010		June 30, 2010		March 31, 2010

Income (loss) before income taxes (GAAP)	$	89,624	$	(96,491)	$	(78,637)	$	(136,259)	$	(91,781)
Convertible subordinated debt discount amortization		13,120		13,763		14,711		14,728		14,761
Accelerated convertible subordinated debt discount amortization		40,994		73,320		27,462		60,481		11,182

Income (loss) before income taxes and subordinated debt conversions (non-GAAP)	$	143,738	$	(9,408)	$	(36,464)	$	(61,050)	$	(65,838)

The impact of the conversion of convertible subordinated debt into preferred stock is further detailed in the “Capital Management” section.

Net Interest Income, Margin and Interest Rate Spreads

Net interest income is the difference between interest earned on interest-bearing assets and interest incurred on interest-bearing liabilities. Taxable-equivalent net interest income for the first quarter of 2011 was $429.2 million compared to $461.0 million for the comparable period of 2010, and $412.0 million in the fourth quarter of 2010. The decline from March 31, 2010 to March 31, 2011 reflects the effect of many factors, including lower balances of and lower interest rates earned on net loans and leases (excluding FDIC-supported loans), higher noncash accelerated discount amortization on convertible subordinated debt, partially offset by lower balances and interest rates paid on customer deposits, and better-than-expected performance of loans acquired from the FDIC. Even though nonaccrual loans decreased by 40.4% between March 31, 2011 and March 31, 2010, the positive impact of this reduction only partially offset the adverse impact of pay-downs and charge-offs on earning assets. The tax rate used for calculating all taxable-equivalent adjustments was 35% for all periods presented.

By its nature, net interest income is especially vulnerable to changes in the mix and amounts of interest-earning assets and interest-bearing liabilities. In addition, changes in the interest rates and yields associated with these assets and liabilities can significantly impact net interest income. Between March 31, 2010 and March 31, 2011, total average loans and leases decreased by 7.6% while total average interest-bearing liabilities decreased by 8.9%. However, the mix of deposit funding improved. For the three months ended March 31, 2011 average noninterest-bearing deposits accounted for 33.7% of all customer deposits, while for the quarter ended March 31, 2010 average noninterest-bearing deposits had been 30.0% of total deposits. Even though the Company experienced growth in commercial, term commercial real estate, and consumer loans during the first quarter of 2011, the total loan portfolio contracted due to the continued reduction in commercial construction and land development and FDIC-supported loans. See “Interest Rate and Market Risk Management” for further discussion of how we manage the portfolios of interest-earning assets, interest-bearing liabilities, and associated risk.

A gauge that we use to measure the Company’s success in managing its net interest income is the level and stability of the net interest margin. The net interest margin was 3.76% for the first quarter of 2011, compared to 4.03% for the same period in 2010, and 3.49% in the fourth quarter of 2010. During the first quarter of 2011, the net interest margin was negatively impacted by 36 basis points for the accelerated discount amortization resulting from the conversion of convertible subordinated debt to preferred stock, and by 11 basis points for the discount amortization related to the convertible subordinated debt. This unfavorable impact was partially mitigated by increased interest income resulting from the accretion of interest income on acquired loans based on increased projected cash flows, and by the increased volume of noninterest-bearing deposit funding.

The Company believes that its “core net interest margin” is more reflective of its operating performance than the reported net interest margin. We calculate the “core net interest margin” by excluding the impact of discount amortization on convertible subordinated debt, accelerated discount amortization on convertible

ZIONS BANCORPORATION AND SUBSIDIARIES

subordinated debt, and additional accretion of interest income on acquired loans from the net interest margin. The “core net interest margin” was 4.06% and 4.26% for the first quarters of 2011 and 2010, respectively, and 4.07% in the fourth quarter of 2010. See “GAAP to non-GAAP Reconciliations” for a reconciliation between the GAAP net interest margin and the non-GAAP “core net interest margin.”

The spread on average interest-bearing funds for the first quarter of 2011 was 3.13%, compared to 3.57% in the same period in 2010. The spread on average interest-bearing funds for the first three months of 2011 was affected by most of the same factors that had an impact on the net interest margin.

The net interest margin will continue to be adversely affected in future quarters by the level of nonperforming assets and the amortization of the discount related to the debt modification transactions, including the accelerated amortization of discount to the extent that holders of the modified debt elect to convert their holdings to preferred stock. The unamortized discount on the convertible subordinated debt was $332 million as of March 31, 2011, or 46.2% of the total $718 million of remaining outstanding convertible subordinated notes; and will be amortized as interest expense over the remaining life of the debt using the interest method. See “Capital Management,” which includes subsequent event information on the subordinated debt conversion occurring during the second quarter of 2011.

The Company expects to continue its efforts over the long run to maintain a slightly “asset-sensitive” position with regard to interest rate risk. However, because of the current low interest rate environment, the Company has allowed its balance sheet to become more asset-sensitive than has historically been the case. With interest rates at historically low levels, there is also a reduced need to protect against falling interest rates. Our estimates of the Company’s actual rate risk position are highly dependent upon a number of assumptions regarding the re-pricing behavior of various deposit and loan types in response to changes in both short-term and long-term interest rates, balance sheet composition, and other modeling assumptions, as well as the actions of competitors and customers in response to those changes. Further detail on interest rate risk is discussed in the Company’s 2010 Annual Report on Form 10-K in Interest Rate Risk on page 75 and in this filing in “Interest Rate Risk.”

ZIONS BANCORPORATION AND SUBSIDIARIES

CONSOLIDATED AVERAGE BALANCE SHEETS, YIELDS AND RATES

(Unaudited)


	Three Months Ended March 31, 2011							Three Months Ended March 31, 2010
(Amounts in thousands)	Average balance		Amount of interest¹		Average rate			Average balance		Amount of interest¹		Average rate

ASSETS
Money market investments	$	4,513,934	$	2,843		0.26	%	$	2,227,181	$	1,439		0.26	%
Securities:
Held-to-maturity		833,000		11,047		5.38	%		899,587		10,821		4.88	%
Available-for-sale		4,107,003		23,040		2.28	%		3,378,930		23,619		2.83	%
Trading account		49,769		452		3.68	%		51,330		475		3.75	%

Total securities		4,989,772		34,539		2.81	%		4,329,847		34,915		3.27	%

Loans held for sale		160,073		1,601		4.06	%		179,433		2,363		5.34	%
Loans:
Net loans and leases excluding FDIC-supported loans ²		35,715,679		485,615		5.51	%		38,274,621		527,897		5.59	%
FDIC-supported loans		952,078		33,169		14.13	%		1,393,775		19,202		5.59	%

Total loans and leases		36,667,757		518,784		5.74	%		39,668,396		547,099		5.59	%

Total interest-earning assets		46,331,536		557,767		4.88	%		46,404,857		585,816		5.12	%

Cash and due from banks		1,078,869							1,280,013
Allowance for loan losses		(1,423,701)							(1,565,136)
Goodwill		1,015,161							1,015,161
Core deposit and other intangibles		85,372							110,754
Other assets		3,617,747							4,306,119

Total assets	$	50,704,984						$	51,551,768

LIABILITIES
Interest-bearing deposits:
Savings and NOW	$	6,401,249		4,781		0.30	%	$	5,842,531		5,160		0.36	%
Money market		15,018,892		19,033		0.51	%		16,515,285		31,229		0.77	%
Time under $100,000		1,909,259		4,806		1.02	%		2,365,645		8,380		1.44	%
Time $100,000 and over		2,147,502		5,796		1.09	%		2,911,319		8,817		1.23	%
Foreign		1,438,979		2,068		0.58	%		1,663,380		2,490		0.61	%

Total interest-bearing deposits		26,915,881		36,484		0.55	%		29,298,160		56,076		0.78	%

Borrowed funds:
Securities sold, not yet purchased		32,054		343		4.34	%		50,243		531		4.29	%
Federal funds purchased and security repurchase agreements		703,976		231		0.13	%		1,137,716		556		0.20	%
Other short-term borrowings		173,349		1,606		3.76	%		152,203		1,980		5.28	%
Long-term debt		1,939,921		89,872		18.79	%		2,044,605		65,692		13.03	%

Total borrowed funds		2,849,300		92,052		13.10	%		3,384,767		68,759		8.24	%

Total interest-bearing liabilities		29,765,181		128,536		1.75	%		32,682,927		124,835		1.55	%

Noninterest-bearing deposits		13,672,638							12,544,442
Other liabilities		548,101							570,028

Total liabilities		43,985,920							45,797,397
Shareholders’ equity:
Preferred equity		2,077,555							1,509,197
Common equity		4,642,639							4,229,021

Controlling interest shareholders’ equity		6,720,194							5,738,218
Noncontrolling interests		(1,130)							16,153

Total shareholders’ equity		6,719,064							5,754,371

Total liabilities and shareholders’ equity	$	50,704,984						$	51,551,768

Spread on average interest-bearing funds						3.13	%						3.57	%
Taxable-equivalent net interest income and net yield on interest-earning assets			$	429,231		3.76	%			$	460,981		4.03	%

¹	Taxable-equivalent rates used where applicable.

²	Net of unearned income and fees, net of related costs. Loans include nonaccrual and restructured loans.

ZIONS BANCORPORATION AND SUBSIDIARIES

Provisions for Credit Losses

The provision for loan losses is the amount of expense that, in our judgment, is required to maintain the allowance for loan losses at an adequate level based upon the inherent risks in the loan portfolio. The provision for unfunded lending commitments is used to maintain the reserve for unfunded lending commitments at an adequate level based upon the inherent risks associated with such commitments. In determining adequate levels of the allowance and reserve, we perform periodic evaluations of the Company’s various portfolios, the levels of actual charge-offs, and statistical trends and other economic factors. See Note 5 of the Notes to Consolidated Financial Statements and “Credit Risk Management” for more information on how we determine the appropriate level for the allowance for loan and lease losses and the reserve for unfunded lending commitments.

The provision for loan losses for the first three months of 2011 was $60.0 million compared to $265.6 million for the same period in 2010. The decrease in the provision reflected an improvement in the credit quality metrics of the loan portfolio, including lower levels of criticized and classified loans, lower realized loss content in most loan segments, and lower balances in construction and land development loans, which declined by 41.6% from March 31, 2010.

Net loan and lease charge-offs fell to $141.5 million in the first quarter of 2011, compared to $227.1 million in the first quarter of 2010. See “Nonperforming Assets” and “Allowance and Reserve for Credit Losses” for further details.

During the first quarters of 2011 and 2010, the Company released $9.5 million and $20.1 million, respectively, from the reserve for unfunded lending commitments. During three months ended March 31, 2011 the Company experienced improved credit quality of such commitments, while decreased commitment levels had been the primary reason for the release during the first quarter of 2010. From period to period, the amounts of unfunded lending commitments may be subject to sizeable fluctuations due to changes in the timing and volume of loan commitments, originations, and funding, as well as historical loss experience.

Although classified and nonperforming loan volumes continue to be elevated, most measures of credit quality have continued to show significant improvement during the first three months of 2011, but with variations among geographies and loan types. During the first quarter of 2011, the Company also experienced a decrease in special mention, classified, nonaccrual, and past due loans, as well as improvements in other credit metrics. The Company expects credit costs to remain low for the next several quarters due to reductions in loan balances in loan categories that have exhibited higher loss rates, such as construction and land development loans. We also anticipate continued reductions in criticized and classified loans of most types, and continued reduction in net charge-offs for at least the next several quarters, compared to the recent elevated levels.

Noninterest Income

Noninterest income represents revenues the Company earns for products and services that have no interest rate or yield associated with them. For the first quarter of 2010, noninterest income was $134.1 million compared to $107.6 million for the first quarter of 2010. The increase is mainly due to a $28.2 million reduction in net impairment losses on investment securities, a $4.1 million increase in net gains from equity securities, and a $2.6 million increase in other service charges, commissions, and fees. Their positive impact was partially offset by a $14.5 million reduction in gain on subordinated debt exchange and a $7.1 million decline in service charges and fees on deposit accounts. Other significant changes in income that contributed to the change for the first quarter of 2011 are discussed below.

Service charges and fees on deposit accounts decreased to $44.5 million from $51.6 million earned during the first quarter of 2010. This decline is primarily due to decreased nonsufficient funds (“NSF”) handling fees, as well as decreased account analysis fees charged on business accounts.

ZIONS BANCORPORATION AND SUBSIDIARIES

Other service charges, commissions, and fees, which include ATM fees, insurance commissions, bankcard merchant fees, debit card interchange fees, cash management fees, lending commitment fees, syndication and servicing fees and other miscellaneous fees earned during the first quarter of 2011 increased by $2.6 million from the first quarter of 2010. The increase is mostly due to increased loan and ATM fees, partially offset by decreased licensing fees. The decrease in licensing fees is primarily attributable to the sale of our NetDeposit remote capture business in the third quarter of 2010.

Capital markets and foreign exchange includes trading income, public finance fees, foreign exchange income and other capital market related fees. Income for the first quarter of 2011 decreased to $7.2 million from $8.5 million earned during the first quarter of 2010, primarily due to decreased trading income.

Net gains from equity securities were $0.9 million for the first quarter of 2011 compared to a $3.2 million loss in the corresponding period in 2010. The net gains were primarily the result of small increases in the value of private equity securities held by the Company.

The Company recognized net credit related impairment losses on CDO investment securities of $3.1 million during the first quarter of 2011 compared to $31.3 million during the corresponding period in 2010. See “Investment Securities Portfolio” for additional information.

During the first quarter of 2010 the Company exchanged $55.6 million of nonconvertible subordinated debt for 2,165,391 shares of common stock, resulting in a $14.5 million gain.

Other noninterest income was $21.0 million for the first quarter of 2011, compared to $3.2 million during the same period in 2010. The first quarter of 2011 included an $18.9 million gain related to certain loans which had been purchased from a failed bank in an FDIC-assisted transaction in 2009. The Company had submitted a bid for these loans, all of which were going to be covered by the FDIC loss sharing agreement. However, certain loans were charged off by the failed bank after the bid date but prior to the ownership transfer, and therefore the amount of applicable loss sharing coverage had to be negotiated at a later date. During the first quarter of 2011, the Company received an $18.9 million remittance related to these loans.

Noninterest Expense

Noninterest expense for the first quarter of 2011 was $408.4 million, an increase of 4.9% from the first quarter of 2010. The increase is primarily due to an $11.9 million increase in other noninterest expense, a $10.7 million increase in salaries and employee benefits, and a $10.6 million increase in the provision for unfunded lending commitments, partially offset by an $8.5 million decrease in other real estate expense.

Salaries and employee benefits were $215.0 million for the first quarter of 2011, compared to $204.3 in the same period in 2010. Base salaries and employee insurance expense remained virtually unchanged between the first quarters of 2011 and 2010, but bonus and incentive accruals increased as a reflection of the Company’s return to profitability.

Other real estate expense decreased by 26.0% from first quarter of 2010. The decrease is primarily driven by lower OREO balances which resulted in lower write-downs of OREO values during work-out. Additionally, some OREO properties were sold at a net gain.

Credit related expense includes costs incurred during the foreclosure process prior to the Company obtaining the title to the collateral and recording the asset in OREO, and other out-of-pocket costs related to the management of problem loans and other assets. These costs were $14.9 million for the first quarter of 2011,

ZIONS BANCORPORATION AND SUBSIDIARIES

compared to $16.8 million in the corresponding period in 2010. The decreased costs are a reflection of the lower levels of problem loans, which in turn caused a decrease in collection costs.

Legal and professional services decreased by $3.3 million from the first quarter of 2010. The fluctuation is primarily caused by higher consulting fees incurred in the prior year, which did not recur in the first quarter of 2011.

The provision for unfunded lending commitments was $(9.5) million during the first quarter of 2011, compared to $(20.1) million in the corresponding period of 2010. As previously discussed, the Company released funds from the reserve for unfunded lending commitments.

Other noninterest expense for the first quarter of 2011 was $66.8 million, compared to $54.8 million during the corresponding period in 2010. The increase included $13.1 million resulting from the write-down of the FDIC indemnification asset attributable to loans purchased from the FDIC during 2009. The loans have performed better than expected, and therefore the indemnification asset has declined in value. This write-down is more than offset by an increase in interest income accreted on those loans.

At March 31, 2011, the Company had 10,484 full-time equivalent employees, compared to 10,505 at March 31, 2010.

Income Taxes

The Company’s income tax expense for the first quarter of 2011 was $37.0 million compared to an income tax benefit of $28.6 million for the same period in 2010. The effective income tax rates, including the effects of noncontrolling interests, for the first three months of 2011 and 2010 were 41.2% and 32.2%, respectively. The tax expense rate for the first quarter of 2011 was increased by the nondeductibility of a portion of the accelerated discount amortization from the conversion of subordinated debt to preferred stock during the quarter. The tax benefit rate for the first quarter of 2010 was reduced primarily by the impact of the taxable surrender of certain bank-owned life insurance policies. As discussed in previous filings, the Company has received federal income tax credits under the U.S. Government’s Community Development Financial Institutions Fund that are recognized over a seven-year period from the year of investment. The effect of these tax credits was to reduce income tax expense by $0.6 million for the first three months of 2011 and by $1.5 million for the first three months of 2010.

The Company had a net deferred tax asset (“DTA”) balance of $513 million at March 31, 2011, compared to $540 million at December 31, 2010. The decrease in the DTA resulted primarily from loan charge-offs in excess of loan loss provisions and the utilization of net operating loss and tax credit carryforward items. The Company did not record an additional valuation allowance as of March 31, 2011. In assessing the need for a valuation allowance, both the positive and negative evidence about the realization of DTAs were evaluated. The ultimate realization of DTAs is based on the Company’s ability to carry back net operating losses to prior tax periods, tax planning strategies that are prudent and feasible and current forecasts of future taxable income, including the reversal of deferred tax liabilities (“DTLs”), which can absorb losses generated in or carried forward to a particular tax year. After evaluating all of the factors and considering the weight of the positive evidence compared to the negative evidence, management has concluded it is more likely than not that the Company will realize the existing DTAs and that an additional valuation allowance is not needed. In addition, the Company has pursued strategies which may have the effect of mitigating the future possibility of a DTA valuation allowance.

ZIONS BANCORPORATION AND SUBSIDIARIES

BALANCE SHEET ANALYSIS

Interest-Earning Assets

Interest-earning assets are those assets that have interest rates or yields associated with them. One of our goals is to maintain a high level of interest-earning assets relative to total assets, while keeping nonearning assets at a minimum. Interest-earning assets consist of money market investments, securities, loans, and leases. Another one of our goals is to maintain a higher-yielding mix of interest earning assets, such as loans, relative to lower-yielding assets, such as money market investments and securities. The current period of slow economic growth, accompanied by the low loan demand experienced in recent quarters, has made it difficult to consistently achieve these goals.

Average interest-earning assets were $46.3 billion for the first three months of 2011 compared to $46.4 billion for the same period in 2010. Average interest-earning assets as a percentage of total average assets for the first three months of 2011 was 91.4% compared to 90.0% for the comparable period of 2010.

Average money market investments, consisting of interest-bearing deposits, federal funds sold and security resell agreements, increased by 102.7% to $4.5 billion for the first three months of 2011 compared to $2.2 billion for the same period of 2010. Average securities increased by 15.2%, and average net loans and leases decreased by 7.6% for the first three months of 2011 compared to the first three months of 2010. The increases in average money market investments and average securities are a reflection of the fact that loan balances have decreased at a faster pace than the net decrease in customer deposits and other funding sources.

Investment Securities Portfolio

We invest in securities both to generate revenues for the Company and to manage liquidity. The following schedules present a profile of the Company’s investment securities portfolio with asset-backed securities classified by credit ratings. The amortized cost amounts represent the Company’s original cost for the investments, adjusted for accumulated amortization or accretion of any yield adjustments related to the security, and credit impairment losses. The estimated fair value measurement levels and methodology are discussed in detail in Note 9 of the Notes to Consolidated Financial Statements.

The first two tables present the Company’s asset-backed securities, classified by the highest of the ratings and the lowest of the ratings from any of Moody’s Investors Service, Fitch Ratings or Standard & Poors.

In the discussion of our investment portfolio below, we have included certain credit rating information, because that information is one indication of the degree of credit risk to which we are exposed, and significant changes in ratings classifications for our investment portfolio could indicate an increased level of risk for the Company.

ZIONS BANCORPORATION AND SUBSIDIARIES

INVESTMENT SECURITIES PORTFOLIO

ASSET-BACKED SECURITIES CLASSIFIED AT HIGHEST CREDIT RATING*

As of March 31, 2011


(In millions)	Par value		Amortized cost		Net unrealized gains (losses) recognized in OCI ¹		Carrying value		Net unrealized gains (losses) not recognized in OCI ¹		Estimated fair value

Held-to-maturity:
Municipal securities	$	560	$	558	$	–	$	558	$	5	$	563
Asset-backed securities:
Trust preferred securities – predominately bank
Noninvestment grade		63		63		(7)		56		(22)		34
Noninvestment grade – OTTI/PIK’d²		26		25		(3)		22		(10)		12

		89		88		(10)		78		(32)		46

Trust preferred securities – predominately insurance
Noninvestment grade		175		175		(13)		162		(29)		133

		175		175		(13)		162		(29)		133

Other
AAA rated		2		2		–		2		–		2
Noninvestment grade		20		18		(1)		17		(7)		10
Noninvestment grade – OTTI/PIK’d²		12		7		(3)		4		–		4

		34		27		(4)		23		(7)		16

		858		848		(27)		821		(63)		758

Available-for-sale:
U.S. Treasury securities		726		726		–		726				726
U.S. Government agencies and corporations:
Agency securities		180		180		6		186				186
Agency guaranteed mortgage-backed securities		562		580		10		590				590
Small Business Administration loan-backed securities		858		920		–		920				920
Municipal securities		144		142		2		144				144
Asset-backed securities:
Trust preferred securities – predominately bank
AAA rated		8		8		(1)		7				7
AA rated		106		73		–		73				73
A rated		309		245		(31)		214				214
BBB rated		308		261		(92)		169				169
Noninvestment grade		339		306		(125)		181				181
Noninvestment grade – OTTI/PIK’d²		971		727		(431)		296				296

		2,041		1,620		(680)		940				940

Trust preferred securities – predominately insurance
AA rated		76		69		–		69				69
A rated		32		31		(4)		27				27
Noninvestment grade		194		195		(65)		130				130

		302		295		(69)		226				226

Trust preferred securities – single banks
A rated		1		1		–		1				1
Not rated		25		25		(6)		19				19

		26		26		(6)		20				20

Trust preferred securities – real estate investment trusts
Noninvestment grade		25		16		(1)		15				15
Noninvestment grade – OTTI/PIK’d²		45		24		(19)		5				5

		70		40		(20)		20				20

Auction rate securities
AAA rated		117		110		(1)		109				109

		117		110		(1)		109				109

Other
AAA rated		25		23		1		24				24
AA rated		13		13		(4)		9				9
A rated		27		26		1		27				27
Noninvestment grade		6		4		(2)		2				2
Noninvestment grade – OTTI/PIK’d²		97		34		(17)		17				17

		168		100		(21)		79				79

		5,194		4,739		(779)		3,960				3,960

Mutual funds and stock		170		170		–		170				170

		5,364		4,909		(779)		4,130				4,130

Total	$	6,222	$	5,757	$	(806)	$	4,951	$	(63)	$	4,888

*	Ratings categories include entire range. For example, “A rated” includes A+, A and A-. Split rated securities with more than one rating are categorized at the highest rating level.

¹	Other comprehensive income. All amounts reported are pretax.

Consists of securities determined to have OTTI and/or securities whose most recent interest payment was capitalized as opposed to being paid in cash, as permitted under the terms of the security. This capitalization feature is known as Payment In Kind (“PIK”) and where exercised the security is called PIK’d.

ZIONS BANCORPORATION AND SUBSIDIARIES

INVESTMENT SECURITIES PORTFOLIO

ASSET-BACKED SECURITIES CLASSIFIED AT LOWEST CREDIT RATING*

As of March 31, 2011


(In millions)	Par value		Amortized cost		Net unrealized gains (losses) recognized in OCI ¹		Carrying value		Net unrealized gains (losses) not recognized in OCI ¹		Estimated fair value

Held-to-maturity:
Municipal securities	$	560	$	558	$	–	$	558	$	5	$	563
Asset-backed securities:
Trust preferred securities – predominately bank
Noninvestment grade		63		63		(7)		56		(22)		34
Noninvestment grade – OTTI/PIK’d ²		26		25		(3)		22		(10)		12

		89		88		(10)		78		(32)		46

Trust preferred securities – predominately insurance
Noninvestment grade		175		175		(13)		162		(29)		133

		175		175		(13)		162		(29)		133

Other
A rated		2		2		–		2		–		2
Noninvestment grade		20		18		(1)		17		(7)		10
Noninvestment grade – OTTI/PIK’d ²		12		7		(3)		4		–		4

		34		27		(4)		23		(7)		16

		858		848		(27)		821		(63)		758


Available-for-sale:
U.S. Treasury securities		726		726		–		726				726
U.S. Government agencies and corporations:
Agency securities		180		180		6		186				186
Agency guaranteed mortgage-backed securities		562		580		10		590				590
Small Business Administration loan-backed securities		858		920		–		920				920
Municipal securities		144		142		2		144				144
Asset-backed securities:
Trust preferred securities – predominately bank
BBB rated		107		74		–		74				74
Noninvestment grade		963		819		(249)		570				570
Noninvestment grade – OTTI/PIK’d ²		971		727		(431)		296				296

		2,041		1,620		(680)		940				940

Trust preferred securities – predominately insurance
AA rated		71		65		–		65				65
A rated		4		4		–		4				4
Noninvestment grade		227		226		(69)		157				157

		302		295		(69)		226				226

Trust preferred securities – single banks
BBB rated		1		1		–		1				1
Not rated		25		25		(6)		19				19

		26		26		(6)		20				20

Trust preferred securities – real estate investment trusts
Noninvestment grade		25		16		(1)		15				15
Noninvestment grade – OTTI/PIK’d ²		45		24		(19)		5				5

		70		40		(20)		20				20

Auction rate securities
AAA rated		117		110		(1)		109				109

		117		110		(1)		109				109

Other
AAA rated		24		22		1		23				23
AA rated		13		13		(4)		9				9
A rated		27		26		1		27				27
BBB rated		1		1		–		1				1
Noninvestment grade		6		4		(2)		2				2
Noninvestment grade – OTTI/PIK’d ²		97		34		(17)		17				17

		168		100		(21)		79				79

		5,194		4,739		(779)		3,960				3,960

Mutual funds and stock		170		170		–		170				170

		5,364		4,909		(779)		4,130				4,130

Total	$	6,222	$	5,757	$	(806)	$	4,951	$	(63)	$	4,888

*	Ratings categories include entire range. For example, “A rated” includes A+, A and A-. Split rated securities with more than one rating are categorized at the lowest rating level.

¹	Other comprehensive income. All amounts reported are pretax.

ZIONS BANCORPORATION AND SUBSIDIARIES


	March 31, 2011						December 31, 2010						March 31, 2010
(In millions)	Amortized cost		Carrying value		Estimated fair value		Amortized cost		Carrying value		Estimated fair value		Amortized cost		Carrying value		Estimated fair value

HELD-TO-MATURITY:
Municipal securities	$	558	$	558	$	563	$	578	$	578	$	582	$	638	$	638	$	643
Asset-backed securities:
Trust preferred securities – banks and insurance		263		240		179		263		239		189		265		239		196
Other		27		23		16		28		24		17		30		26		17

	$	848	$	821	$	758	$	869	$	841	$	788	$	933	$	903	$	856


AVAILABLE-FOR-SALE:
U.S. Treasury securities	$	726	$	726	$	726	$	705	$	706	$	706	$	28	$	28	$	28
U.S. Government agencies and corporations:
Agency securities		180		186		186		201		208		208		224		231		231
Agency guaranteed mortgage-backed securities		580		590		590		566		576		576		372		383		383
Small Business Administration loan-backed securities		920		920		920		867		868		868		798		785		785
Municipal securities		142		144		144		156		158		158		230		235		235
Asset-backed securities:
Trust preferred securities – banks and insurance		1,941		1,186		1,186		1,947		1,243		1,243		1,995		1,353		1,353
Trust preferred securities – real estate investment trusts		40		20		20		46		19		19		54		24		24
Auction rate securities		110		109		109		111		110		110		156		157		157
Other		100		79		79		103		81		81		116		71		71

		4,739		3,960		3,960		4,702		3,969		3,969		3,973		3,267		3,267

Mutual funds and stock		170		170		170		237		237		237		170		170		170

		4,909		4,130		4,130		4,939		4,206		4,206		4,143		3,437		3,437

Total	$	5,757	$	4,951	$	4,888	$	5,808	$	5,047	$	4,994	$	5,076	$	4,340	$	4,293

The amortized cost of investment securities on March 31, 2011 decreased by 0.9% and increased by 13.4% from the balances on December 31, 2010 and March 31, 2010, respectively. The change from March 31, 2010 to March 31, 2011 was primarily due to increased investments in U.S. Treasury securities, Small Business Administration loan-backed securities, and agency guaranteed mortgage-backed securities, partially offset by decreases in municipal and ABS securities.

On March 31, 2011, 21.5% of the $4.1 billion of fair value of available-for-sale securities portfolio was valued at Level 1, 44.6% was valued at Level 2, and 33.9% was valued at Level 3 under the GAAP fair value accounting valuation hierarchy. On December 31, 2010 the fair value of available-for-sale securities totaled $4.2 billion, of which 22.2% was valued at Level 1, 43.0% at Level 2, and 34.8% at Level 3. See Note 9 of the Notes to Consolidated Financial Statements for further discussion of fair value accounting.

The amortized cost of available-for-sale investment securities valued at Level 3 was $2,201 million at March 31, 2011 and the fair value of these securities was $1,402 million. The securities valued at Level 3 were comprised of ABS CDOs and auction rate securities. For these Level 3 securities, net pretax unrealized loss recognized in OCI at the end of the first quarter of 2011 was $799 million. As of March 31, 2011, we believe that we will receive on settlement or maturity the amortized cost amounts of the Level 3 available-for-sale securities. This expectation applies to both those securities for which OTTI has been recognized and those for which no OTTI has been recognized.

Valuation and Sensitivity Analysis of Level 3 Bank and Insurance CDOs

The following schedule sets forth the sensitivity of the current CDO fair values, using an internal model, to changes in the most significant assumptions utilized in the model:

ZIONS BANCORPORATION AND SUBSIDIARIES

SENSITIVITY OF INTERNAL MODEL


		Bank and Insurance CDOs at Level 3
(Amounts in millions)		Held-to-maturity				Available-for-sale

Fair value balance at March 31, 2011		$	179			$	1,160

		Incremental		Cumulative		Incremental		Cumulative
Currently Modeled Assumptions
Expected collateral credit losses ¹
Loss percentage from currently defaulted or deferring collateral ²					4.3%				19.7%
Projected loss percentage from currently performing collateral
1-year			0.2%		4.5%		0.4%		20.1%
years 2-5			0.6%		5.1%		0.6%		20.7%
years 6-30			6.4%		11.6%		4.9%		25.6%
Discount rate ³
Weighted average spread over LIBOR			564 bp				813 bp

Sensitivity of Modeled Assumptions
Increase (decrease) in fair value due to increase in projected loss percentage from currently performing collateral ⁴	25%	$	(0.2)			$	17.5
	50%		(0.3)				13.5
	100%		(0.7)				16.5

Decrease in fair value due to increase in projected loss percentage from currently performing collateral ⁴ and the immediate default of all deferring collateral with no recovery	25%	$	(2.6)			$	(138.1)
	50%		(2.9)				(142.9)
	100%		(3.6)				(152.4)

Decrease in fair value due to increase in discount rate	+ 100 bp	$	(16.1)			$	(74.1)
	+ 200 bp		(30.3)				(158.6)

¹	The Company uses an expected credit loss model which specifies cumulative losses at the 1-year, 5-year, and 30-year points from the date of valuation. These current and projected losses are reflected in the CDO’s fair value.

Weighted average percentage of collateral that is defaulted due to bank failures, or deferring payment as allowed under the terms of the security, including a 0% recovery rate on defaulted collateral and a credit-specific probability of default on deferring collateral which ranges from 2.53% to 100%.

^3.

The discount rate is a spread over the LIBOR swap yield curve at the date of valuation.

⁴

Percentage increase is applied to incremental projected loss percentages from currently performing collateral. For example, the 50% and 100% stress scenarios for AFS securities would result in cumulative 30 year losses of 28.6% = 25.6% + 50% ( 0.4% + 0.6% + 4.9% ) and 31.5% = 25.6% + 100% (0.4%+0.6%+4.9%) respectively.

The Dodd-Frank Act became effective during the third quarter of 2010, and it disallows the inclusion of trust preferred securities in Tier 1 capital for banks with assets over $15 billion. For those institutions within each pool with investment grade ratings, we assume that trust preferred securities will be called prior to the end of the disallowance period. Prior to the third quarter of 2010 and the enactment of this legislation, we had assumed a prepayment rate of 0% for five years for each CDO pool, followed by a 2% annual prepayment rate thereafter. Effective from the third quarter of 2010, we utilize a pool specific prepayment rate for the next five years calculated with reference to the percentage of each pool’s performing collateral which consists of collateral from banks in excess of $15 billion in assets and with investment grade ratings. We assume that

ZIONS BANCORPORATION AND SUBSIDIARIES

these large banks will fully prepay by year five with prepayment behaviors skewed toward the end of the five year disallowance period.

For the first quarter of 2011, the resulting average annual prepayment rate assumption for pools which include large banks is 1.09% for each of the first three years followed by an average annual prepayment rate assumption of 3.26% for years four and five. For pools without large banks, we continue to assume a 0% five year prepayment rate. In years six through maturity, we continue to assume a 2% annual prepayment rate for both portions of the portfolio. The effect of this assumption change was $11.6 million in net impairment losses in the third quarter of 2010. Increased prepayment rates are generally favorable for the most senior tranches and adverse to the more junior tranches.

The first quarter of 2011 sensitivity analysis of valuation assumptions, when compared to the same projection for December 31, 2010, was positively impacted by lower projected losses on the CDO pools. The changes were driven by loss experience due to default as well as generally lower loss projections from both performing institutions and from deferring institutions. An adverse change in the percentage of deferring institutions expected to return to performance was offset by a favorable change in the projected cash flow from those deferring institutions expected to return to performance with full payment of all interest contractually due, including back interest. The valuation of CDOs is further discussed in Note 9 of the Notes to Consolidated Financial Statements.

The weighted average discount rate used for the portfolio decreased by 44 basis points from last quarter. Substantial increases in original AAA discount rates were more than offset by reduced discount rates used for original A and BBB securities. Projected cash flow from these subordinate tranches generally improved when compared to the prior quarter; this improvement was due to projected cash flows from the portion of the deferring collateral projected to come current and resume payment. The discount rate utilized for fair value purposes is a function of the stability, or alternately, the variability of returns or “expected loss” of the cash flow across all scenarios in a Monte Carlo simulation. Greater cash flow improves this stability, leaving less residual risk and hence a reduced market level discount rate. The valuation of the AFS and HTM portfolios, including the use of trading prices, is further discussed in Note 9 of the Notes to Consolidated Financial Statements.

During the first quarter of 2011, the Company recognized credit-related net impairment losses on CDOs of $3.1 million, compared to a loss of $31.3 million for the corresponding period in 2010.

The following schedules provide additional information on the below-investment-grade rated bank and insurance trust preferred CDOs’ portion of the AFS and HTM portfolios. The schedules reflect data and assumptions that are included in the calculations of fair value and OTTI. The schedules utilize the lowest rating to identify those securities below investment grade. The schedules segment the securities by whether or not they have been determined to have had other than temporary impairment, and by original ratings level to provide granularity on the seniority level of the securities and the distribution of unrealized losses. The best and worst pool-level statistic for each original ratings subgroup is presented, not the best and worst single security within the original ratings grouping. The number of issuers and number of currently performing issuers noted in the later schedule are from the same security. The remaining statistics may not be from the same security.

ZIONS BANCORPORATION AND SUBSIDIARIES

BELOW-INVESTMENT-GRADE RATED BANK AND INSURANCE TRUST PREFERRED CDOS BY ORIGINAL

RATINGS LEVEL

As of March 31, 2011


	Number of securities		% of portfolio			Total								Credit loss				Valuation losses¹
(Dollar amounts in millions)	Number of securities		% of portfolio			Par value		Amortized cost		Estimated fair value		Unrealized loss		Current year		Life-to- date		Life-to- date

Original ratings of securities, non-OTTI:
Original AAA		28		40.7	%	$	989.8	$	844.7	$	593.6	$	(251.1)	$	–	$	–	$	(153.2)
Original A		22		19.9	%		482.0		482.0		316.0		(166.0)		–		–		–
Original BBB		6		2.4	%		58.5		58.4		31.6		(26.8)		–		–		–

Total Non-OTTI				63.0	%		1,530.3		1,385.1		941.2		(443.9)		–		–		(153.2)

Original ratings of securities, OTTI:
Original AAA		1		2.1	%		50.0		43.4		19.9		(23.5)		–		(4.8)		(1.9)
Original A		40		32.6	%		789.5		584.4		235.4		(349.0)		(1.8)		(204.1)		–
Original BBB		5		2.3	%		55.1		22.4		5.9		(16.5)		–		(32.5)		–

Total OTTI				37.0	%		894.6		650.2		261.2		(389.0)		(1.8)		(241.4)		(1.9)

Total noninvestment grade bank and insurance CDOs				100.0	%	$	2,424.9	$	2,035.3	$	1,202.4	$	(832.9)	$	(1.8)	$	(241.4)	$	(155.1)

¹	Valuation losses were taken on securities purchased from Lockhart Funding LLC prior to its consolidation in June 2009.


	Average holding ¹
	Par value		Amortized cost		Estimated fair value		Unrealized gain (loss)

Original ratings of securities, non-OTTI:
Original AAA	$	34.1	$	29.1	$	20.5	$	(8.7	)
Original A		16.1		16.1		10.5		(5.5	)
Original BBB		9.8		9.7		5.3		(4.5	)
Original ratings of securities, OTTI:
Original AAA		50.0		43.4		19.9		(23.5	)
Original A		15.5		11.5		4.6		(6.8	)
Original BBB		11.0		4.5		1.2		(3.3	)

¹	The Company may have more than one holding of the same security.

POOL LEVEL PERFORMANCE AND PROJECTIONS FOR BELOW-INVESTMENT-GRADE RATED

BANK AND INSURANCE TRUST PREFERRED CDOS

As of March 31, 2011


	Current lowest rating		# of issuers in collateral pool		# of issuers currently performing¹		% of original collateral defaulted²		% of original collateral deferring³		Subordination as a % of performing collateral ⁴			Collateralization %⁵			Present value of expected cash flows discounted at coupon rate as a % of par ⁶		Lifetime additional projected loss from performing collateral ⁷

Original ratings of securities, non-OTTI:
Original AAA
Best		BB		25		23		–		4.75%		87.32%			788.64%			100%		–
Weighted average				38		25		14.61%		14.34%		40.96%			249.8%			99%		5.66%
Worst		CC		19		6		28.71%		26.41%		10.37%			154.4%			90%		10.16%
Original A
Best		B		36		35		–		0.69%		27.53%			308.00%			100%		5.76%
Weighted average				17		15		2.12%		7.63%		10.23%			135.16%			100%		7.17%
Worst		C		6		4		10.31%		25.07%		(9.11%)	⁹		73.40%	¹⁰		100%		8.03%
Original BBB
Best		CCC		36		35		–		3.00%		15.28%			384.53%			100%		6.88%
Weighted average				28		26		1.24%		5.56%		7.24%			229.67%			100%		7.52%
Worst		C		17		15		6.03%		9.33%		(5.68%)	⁹		8.15%	¹⁰		100%		8.03%
Original ratings of securities, OTTI:
Original AAA
Single security		CCC		43		26		16.57%		20.77%		27.19%			224.57%			87%		5.37%
Original A
Best		CCC		38		32		–		1.89%		58.36%			240.17%			100%		(7.45%)
Weighted average				38		24		10.94%		17.72%		(14.46%)			62.85%			90%		5.69%
Worst		C		3		0		19.39%		29.85%		(49.15%)			13.42%			57%		10.16%
Original BBB
Best		C		74		53		13.35%		10.98%		(7.35%)			81.28%			100%		4.70%
Weighted average				33		21		14.35%		20.50%		(27.36%)			(169.82%	)		76%		5.49%
Worst		C		37		19		16.76%		26.41%		(39.58%)			(290.14%	)		49%		6.41%

ZIONS BANCORPORATION AND SUBSIDIARIES

¹	Excludes both defaulted issuers and issuers that have elected to defer payment of current interest.

²	Collateral is identified as defaulted when a regulator closes an issuing bank.

³	Collateral is identified as deferring when the Company becomes aware that an issuer has announced or elected to defer interest payment on trust preferred debt.

⁴

Utilizes the Company’s loss assumption of 100% on defaulted collateral and the Company’s issuer specific loss assumption of from 2.53% to 100% dependent on credit for each deferring piece of collateral. “Subordination” in the schedule includes the effects of seniority level within the CDOs’ liability structure, the Company’s loss and recovery rate assumption for deferring but not defaulted collateral and a 0% recovery rate for defaulted collateral. The numerator is all collateral less the sum of (i) 100% of the defaulted collateral, (ii) the sum of the projected net loss amounts for each piece of deferring but not defaulted collateral and (iii) the amount of each CDO’s debt which is either senior to or pari passu with our security’s priority level. The denominator is all collateral less the sum of (i) 100% of the defaulted collateral and (ii) the sum of the projected net loss amounts for each piece of deferring but not defaulted collateral.

⁵

Utilizes the Company’s loss assumption of 100% on defaulted collateral and the Company’s issuer specific loss assumption of from 2.53% to 100% dependent on credit for each deferring piece of collateral. “Collateralization” in the schedule identifies the portion of a CDO tranche that is backed by nondefaulted collateral. The numerator is all collateral less the sum of (i) 100% of the defaulted collateral, (ii) the sum of the projected net loss amounts for each piece of deferring but not defaulted collateral and (iii) the amount of each CDO’s debt which is senior to our security’s priority level. The denominator is the par amount of the tranche. Par is defined as the original par less any principal paydowns.

⁶	For OTTI securities, this statistic approximates the extent of OTTI credit losses taken.

⁷	This is the same statistic presented in the preceding sensitivity schedule and incorporated in the fair value and OTTI calculations. The statistic is the sum of incremental projected loss percentages from currently paying collateral for year one, years two through five and years six through thirty.

⁸	Although cash flows project a return of less than par, they project full recovery of amortized cost and therefore no OTTI exists.

⁹	Negative subordination is projected to be remedied by excess spread prior to maturity.

¹⁰	Collateralization shortfall is projected to be remedied by excess spread prior to maturity.

The Company’s loss and recovery experience as of March 31, 2011 (and our Level 3 modeling assumption) is essentially a 100% loss on defaults, although we have, to date, received several, generally small, recoveries on defaults. Our experience with deferring bank collateral has been that of all collateral that has elected to defer beginning in 2007 or thereafter, 45.8% has defaulted, and approximately 50.6 % remains in deferral and within the allowable deferrable period. Sixteen issuing banks, with collateral aggregating to 3.7% of all deferrals and 7% of all surviving deferrals, have come current and resumed interest payments on their trust preferred securities after previously deferring some payments. Older deferrals are more likely to have defaulted. Approximately 89% of the bank collateral which first deferred prior to January 1, 2009 had defaulted by March 31, 2011. For bank collateral which first deferred on or after January 1, 2009, 29% had defaulted by March 31, 2011. New deferrals peaked in 2009. In 2008, 9.2% of collateral performing at the start of the year elected to defer by year end. This contrasts with 19.1% in 2009 and 10% in 2010. A total of $189.3 million of bank collateral elected to defer during the first quarter of 2011. This comprises 1.4% of the collateral performing at the start of 2011. Further details on the Company’s valuation process are detailed in Note 9 of the Notes to Consolidated Financial Statements.

Other-than-Temporary Impairment (“OTTI”) – Investments in Debt Securities

We review investments in debt securities on an ongoing basis for the presence of OTTI, taking into consideration current market conditions, estimated credit impairment, if any, fair value in relationship to cost, the extent and nature of change in fair value, issuer rating changes and trends, volatility of earnings, current analysts’ evaluations, our ability and intent to hold investments until a recovery of amortized cost which may be maturity, and other factors. For securities where an internal income-based cash flow model or third party valuation service produces a loss-adjusted expected cash flow for the security, the presence of OTTI is identified and the amount of the credit component of OTTI is calculated by discounting this loss-adjusted cash flow at the security’s coupon rate and comparing that value to the Company’s amortized cost of the security.

The Company incurred $3.1 million of credit-related OTTI charges recorded in earnings during the first quarter of 2011. One of the securities deemed to have OTTI this quarter was primarily collateralized by trust

ZIONS BANCORPORATION AND SUBSIDIARIES

preferred debt issued by a real estate investment trust, and the other by bank and insurance company trust preferred debt. Future reviews for OTTI will consider the particular facts and circumstances during the reporting period in review.

Loan Portfolio

As of March 31, 2011, net loans and leases were $36.5 billion, reflecting a 6.2% and a 0.5% decrease from the balances at March 31, 2010 and December 31, 2010, respectively. The decrease is primarily due to pay-downs and charge-offs, which continue to more than offset new loan originations.

The following table sets forth the loan portfolio by type of loan:


	March 31, 2011					December 31, 2010					March 31, 2010
(Amounts in millions)	Amount		% of total loans			Amount		% of total loans			Amount		% of total loans

Commercial:
Commercial and industrial	$	9,276		25.3	%	$	9,167		24.9	%	$	9,269		23.7	%
Leasing		409		1.1	%		410		1.1	%		442		1.1	%
Owner occupied		8,252		22.5	%		8,218		22.3	%		8,457		21.6	%
Municipal		435		1.2	%		439		1.2	%		332		0.9	%

Total commercial		18,372					18,234					18,500
Commercial real estate:
Construction and land development		2,955		8.1	%		3,499		9.5	%		5,060		12.9	%
Term		7,857		21.4	%		7,650		20.8	%		7,524		19.3	%

Total commercial real estate		10,812					11,149					12,584
Consumer:
Home equity credit line		2,120		5.8	%		2,142		5.8	%		2,121		5.4	%
1-4 family residential		3,620		9.9	%		3,499		9.5	%		3,584		9.2	%
Construction and other consumer real estate		324		0.9	%		343		0.9	%		403		1.0	%
Bankcard and other revolving plans		276		0.7	%		297		0.8	%		314		0.8	%
Other		230		0.6	%		233		0.6	%		279		0.7	%

Total consumer		6,570					6,514					6,701
FDIC-supported loans ¹		913		2.5	%		971		2.6	%		1,321		3.4	%

Total loans	$	36,667		100.0	%	$	36,868		100.0	%	$	39,106		100.0	%

¹	FDIC-supported loans represent loans acquired from the FDIC subject to loss sharing agreements.

Most of the loan portfolio contraction during the first three months of 2011 occurred in commercial construction and land development loans. Some of these loans have been converted to term loans as projects have been completed and the demand for new credit has been low due to the current state of the construction and real estate industries. The largest reductions occurred at Amegy, CB&T, and ZFNB. Some of this contraction was partially offset by growth in commercial and industrial lending, as well as in 1-4 family residential lending. The balance of commercial and industrial loans increased primarily at Amegy, CBW and NBA, while the largest contributors to the growth in 1-4 family residential loans were NSB, CB&T, and Amegy.

We expect that commercial construction and land development loans may continue to decline in future quarters as demand for these types of loans remains weak.

Other Noninterest-Bearing Investments

ZIONS BANCORPORATION AND SUBSIDIARIES

The following table sets forth the Company’s other noninterest-bearing investments:


(In millions)	March 31, 2011		December 31, 2010		March 31, 2010

Bank-owned life insurance	$	432	$	428	$	450
Federal Home Loan Bank stock		123		125		136
Federal Reserve stock		128		128		122
SBIC investments ¹		39		38		65
Non-SBIC investment funds and other		97		96		89
Investments in ADC arrangements ²		16		17		18
Other public companies		10		12		16
Trust preferred securities		14		14		14

	$	859	$	858	$	910

¹	Amounts include noncontrolling investors’ interests in Zions’ managed SBIC investments of approximately $15 million on March 31, 2010. As of March 31, 2011 and December 31, 2010, such investments have been either liquidated or deconsolidated.

²	Investments in Acquisition Development and Construction (“ADC”) arrangements are loans that do not qualify for loan accounting under GAAP; therefore these loans are accounted for as noninterest-bearing investments.

Deposits

Deposits, both interest-bearing and noninterest-bearing, are a primary source of funding for the Company. Average total deposits for the first three months of 2011 decreased by 3.0% compared to the same period in 2010, with average interest-bearing deposits decreasing 8.1% and average noninterest-bearing deposits increasing 9.0%. The decline in deposits resulted from actions taken by the Company to reduce higher cost deposits, such as time deposits. Core deposits at March 31, 2011, which exclude time deposits larger than $100,000 and brokered deposits, decreased by 0.1%, or $55 million, from December 31, 2010. The decrease was mostly due to decreases in money market deposits and time deposits under $100,000, offset by increases in noninterest-bearing deposits.

Demand, savings and money market deposits comprised 86.6% of total deposits at the end of the first quarter of 2011, compared with 84.2% and 85.8% as of March 31, 2010, and December 31, 2010, respectively.

During 2010, the Company reduced brokered deposits due to excess liquidity and weak loan demand. At March 31, 2011, total deposits included $294 million of brokered deposits compared to $435 million at December 31, 2010 and $1,540 million at March 31, 2010.

RISK ELEMENTS

Since risk is inherent in substantially all of the Company’s operations, management of risk is an integral part of its operations and is also a key determinant of its overall performance. We apply various strategies to reduce the risks to which the Company’s operations are exposed, including credit, interest rate and market, liquidity and operational risks.

Credit Risk Management

Credit risk is the possibility of loss from the failure of a borrower, guarantor, or another obligor to fully perform under the terms of a credit-related contract. Credit risk arises primarily from the Company’s lending activities, as well as from off-balance sheet credit instruments.

Centralized oversight of credit risk is provided through a uniform credit policy, credit administration, and credit examination functions at the Parent. Effective management of credit risk is essential in maintaining a

ZIONS BANCORPORATION AND SUBSIDIARIES

safe, sound and profitable financial institution. We have structured the organization to separate the lending function from the credit administration function, which has added strength to the control over, and the independent evaluation of, credit activities. Formal loan policies and procedures provide the Company with a framework for consistent underwriting and a basis for sound credit decisions. In addition, the Company has a well-defined set of standards for evaluating its loan portfolio and management utilizes a comprehensive loan grading system to determine the risk potential in the portfolio. Further, an independent internal credit examination department periodically conducts examinations of the Company’s lending departments. These examinations are designed to review credit quality, adequacy of documentation, appropriate loan grading administration and compliance with lending policies, and reports thereon are submitted to management and to the Credit Review Committee of the Board of Directors. New, expanded, or modified products and services, as well as new lines of business, are approved by a New Product Review Committee at the bank level or Parent level, depending on the inherent risk of the new activity.

Both the credit policy and the credit examination functions are managed centrally. Each affiliate bank is able to modify corporate credit policy to be more conservative; however, corporate approval must be obtained if a bank wishes to create a more liberal policy. Historically, only a limited number of such modifications have been approved. This entire process has been designed to place an emphasis on strong underwriting standards and early detection of potential problem credits so that action plans can be developed and implemented on a timely basis to mitigate any potential losses.

With regard to credit risk associated with counterparties to off-balance sheet credit instruments, Zions Bank and Amegy have International Swap Dealer Association (“ISDA”) agreements in place under which derivative transactions are entered into with major derivative dealers. Each ISDA agreement details the collateral arrangements between Zions Bank and Amegy and their counterparties. In every case, the amount of the collateral required to secure the exposed party in the derivative transaction is determined by the fair value of the derivative and the credit rating of the party with the obligation. The credit rating used in these situations is provided by either Moody’s or Standard & Poor’s. This means that, in like transactions, a counterparty with a “AAA” rating would be obligated to provide less collateral to secure a major credit exposure than one with an “A” rating. All derivative gains and losses between Zions Bank or Amegy and a single counterparty are netted to determine the net credit exposure and therefore the collateral required. Any derivative transactions for affiliate banks other than Zions Bank or Amegy, as well as certain derivatives transactions entered into by Amegy after its acquisition by the Company, are handled through intercompany ISDA agreements such that the relevant affiliate faces Zions Bank and in turn Zions Bank faces the derivatives dealer.

The Company’s credit risk management strategy includes diversification of its loan portfolio. The Company maintains a diversified loan portfolio, which includes commercial real estate loans. The Company attempts to avoid the risk of an undue concentration of credits in a particular collateral type or with an individual customer or counterparty. During 2009, the Company adopted new concentration limits on various types of commercial real estate lending, particularly construction and land development lending, which have contributed to further reducing the Company’s exposure to this type of lending. The majority of the Company’s business activity is with customers located within the geographical footprint of its banking subsidiaries.

The Company’s loan portfolio includes loans that were acquired from failed banks: Alliance Bank, Great Basin Bank, and Vineyard Bank. These loans include nonperforming loans and other loans with characteristics indicative of a high credit risk profile. Substantially all of these loans are covered under loss sharing agreements with the FDIC for which the FDIC generally will assume 80% of the first $275 million of credit losses for the Alliance Bank assets, $40 million of credit losses for the Great Basin Bank assets, $465 million of credit losses for the Vineyard Bank assets and 95% of the credit losses in excess of those amounts.

ZIONS BANCORPORATION AND SUBSIDIARIES

Therefore, the Company’s financial exposure to losses from these assets is substantially limited. In addition, the acquired loans have performed better than expected. FDIC-supported loans represent approximately 2.5% of the Company’s total loan portfolio at March 31, 2011.

The Company participates in various lending programs sponsored by U.S. government agencies, such as the Small Business Administration, Federal Housing Authority, Veterans’ Administration, and U.S. Department of Agriculture. As of March 31, 2011, the principal balance of such loans was $611 million, and the guaranteed portion amounted to $452 million. Most of these loans were guaranteed by the Small Business Administration. Government agency guaranteed loans, excluding FDIC-supported loans, consisted of the following as of March 31, 2011.


(Amounts in millions)	March 31, 2011		Percent guaranteed
(Amounts in millions)	March 31, 2011		Percent guaranteed

Commercial	$	586		74	%
Commercial real estate		23		76	%
Consumer		2		100	%

Total loans excluding FDIC-supported loans	$	611		74	%

The credit quality of the Company’s loan portfolio improved further during the first quarter of 2011. Nonperforming lending related assets decreased by 8.0% from December 31, 2010. Gross charge-offs declined to $168 million in the first three months of 2011 compared to $283 million in the fourth quarter of 2010. Net charge-offs decreased to $141 million from $251 million in the same periods.

A more comprehensive discussion of our credit risk management is contained in the Company’s 2010 Annual Report on Form 10-K.

Commercial Lending

The following schedule provides selected information regarding our commercial lending portfolio regarding lending concentrations to certain industries.


	March 31, 2011					December 31, 2010
(Amounts in millions)	Amount		Percent			Amount		Percent

Real estate and rental and leasing	$	2,512		13.7	%	$	2,488		13.6	%
Manufacturing		1,989		10.8	%		1,984		10.9	%
Retail trade		1,608		8.8	%		1,585		8.7	%
Wholesale trade		1,520		8.3	%		1,500		8.2	%
Mining, quarrying, and oil and gas extraction		1,391		7.6	%		1,346		7.4	%
Healthcare and social assistance		1,269		6.9	%		1,264		6.9	%
Construction		1,126		6.1	%		1,110		6.1	%
Professional, scientific, and technical services		938		5.1	%		966		5.3	%
Transportation and warehousing		902		4.9	%		866		4.8	%
Finance and insurance		854		4.6	%		963		5.3	%
Hospitality and food services		821		4.5	%		809		4.4	%
Other		3,442		18.7	%		3,353		18.4	%

Total	$	18,372		100.0	%	$	18,234		100.0	%

Commercial Real Estate Loans

Selected information regarding our commercial real estate (“CRE”) loan portfolio is presented in the following table:

ZIONS BANCORPORATION AND SUBSIDIARIES

COMMERCIAL REAL ESTATE PORTFOLIO BY LOAN TYPE AND COLLATERAL LOCATION


(Amounts in millions)			Collateral Location
Loan Type	As of Date		Arizona		Northern California		Southern California		Nevada		Colorado		Texas		Utah/ Idaho		Wash- ington		Other¹		Total		% of total CRE

Commercial term
Balance outstanding		3/31/11	$	1,030.0	$	409.5	$	1,941.0	$	766.7	$	487.2	$	1,183.9	$	861.3	$	249.7	$	927.5	$	7,856.8		72.7%
% of loan type				13.1%		5.2%		24.7%		9.7%		6.2%		15.1%		11.0%		3.2%		11.8%		100.0%
Delinquency rates ²:
30-89 days		3/31/11		2.5%		1.0%		1.0%		2.5%		3.3%		2.2%		2.6%		0.9%		6.9%		2.5%
		12/31/10		1.6%		1.5%		1.7%		3.7%		8.2%		2.7%		2.1%		0.3%		7.3%		3.1%
³ 90 days		3/31/11		1.2%		0.8%		0.6%		1.3%		2.2%		1.6%		1.5%		0.3%		3.8%		1.5%
		12/31/10		1.1%		1.5%		0.9%		2.8%		1.4%		1.6%		1.8%		–		3.9%		1.7%
Accruing loans past due 90 days or more		3/3/11		0.3		–		–		–		–		–		–		0.8		–		1.1
		12/31/10		–		–		0.2		–		–		4.0		–		–		0.3		4.5
Nonaccrual loans		3/31/11		28.3		4.0		30.6		65.0		24.4		31.9		21.1		1.5		63.5		270.3
		12/31/10		23.4		6.2		36.3		70.5		19.4		32.8		20.1		1.0		53.9		263.6
Residential construction and land development
Balance outstanding		3/31/11		157.3		24.7		104.2		22.5		117.3		359.9		185.2		3.0		67.8		1,041.9		9.6%
% of loan type				15.1%		2.4%		10.0%		2.1%		11.3%		34.5%		17.8%		0.3%		6.5%		100.0%
Delinquency rates ²:
30-89 days		3/31/11		9.5%		6.6%		12.6%		47.3%		8.6%		18.4%		13.1%		5.8%		11.1%		14.3%
		12/31/10		9.8%		6.0%		5.3%		55.6%		1.4%		19.9%		13.6%		–		9.6%		14.3%
³ 90 days		3/31/11		5.4%		6.6%		4.8%		42.5%		1.5%		14.4%		12.4%		–		11.1%		10.4%
		12/31/10		8.6%		6.0%		3.4%		55.6%		0.4%		19.2%		10.0%		–		5.0%		12.6%
Accruing loans past due 90 days or more		3/31/11		–		–		–		–		–		–		0.3		–		1.1		1.4
		12/31/10		0.8		–		–		–		–		0.1		0.6		–		0.1		1.6
Nonaccrual loans		3/31/11		22.5		1.6		8.5		14.3		32.6		76.2		42.9		–		7.4		206.0
		12/31/10		29.9		1.8		8.1		30.3		41.4		81.2		39.1		–		8.3		240.1
Commercial construction and land development
Balance outstanding		3/31/11		258.6		14.6		175.5		182.7		192.9		682.6		283.8		33.2		89.0		1,912.9		17.7%
% of loan type				13.5%		0.8%		9.2%		9.5%		10.1%		35.7%		14.8%		1.7%		4.7%		100.0%
Delinquency rates ²:
30-89 days		3/31/11		3.9%		–		0.4%		20.5%		7.6%		10.0%		3.6%		35.7%		8.0%		8.4%
		12/31/10		5.0%		–		0.5%		23.7%		8.1%		5.7%		6.4%		2.7%		12.4%		7.1%
³ 90 days		3/31/11		2.4%		–		0.4%		18.2%		5.7%		6.0%		1.3%		–		8.0%		5.4%
		12/31/10		4.2%		–		0.5%		16.4%		8.1%		4.3%		4.2%		–		12.4%		5.5%
Accruing loans past due 90 days or more		3/31/11		–		–		–		–		–		–		–		–		0.1		0.1
		12/31/10		–		–		–		–		–		–		0.2		–		0.1		0.3
Nonaccrual loans		3/31/11		15.3		–		1.3		45.8		11.0		84.4		28.0		–		7.3		193.1
		12/31/10		18.9		–		2.2		73.9		19.8		91.9		35.7		–		11.6		254.0
Total construction and land development		3/31/11		415.9		39.3		279.7		205.2		310.2		1,042.5		469.0		36.2		156.8		2,954.8
Total commercial real estate		3/31/11	$	1,445.9	$	448.8	$	2,220.7	$	971.9	$	797.4	$	2,226.4	$	1,330.3	$	285.9	$	1,084.3	$	10,811.6		100.0%

¹	No other geography exceeds $138 million for all three loan types.

²	Delinquency rates include nonaccrual loans.

ZIONS BANCORPORATION AND SUBSIDIARIES

Approximately 34% of the commercial real estate term loans consist of mini-perm loans. For such loans, construction has been completed and the project has stabilized to a level that supports the granting of a mini-perm loan in accordance with our underwriting standards. Mini-perm loans generally have initial maturities of 3 to 7 years. The remaining 66% of commercial real estate loans are term loans with initial maturities generally of 15 to 20 years. The stabilization criteria for a project to qualify for a term loan differ by product type and includes, for example, criteria related to the cash flow generated by the project and occupancy rates.

Approximately 30% of the commercial construction and land development portfolio’s balance consists of acquisition and development loans. Most of these acquisition and development properties are tied to specific retail, apartment, office, or other projects. Underwriting on commercial properties is primarily based on the economic viability of the project with heavy consideration given to the creditworthiness of the sponsor. We generally require that the owner’s equity be injected prior to bank advances. Re-margining requirements are often included in the loan agreement along with guarantees of the sponsor. Recognizing that debt is paid via cash flow, the projected economics of the project are primary in the underwriting because these determine the ultimate value of the property and its ability to service debt. Therefore, in most projects (with the exception of multi-family projects) we look for substantial pre-leasing in our underwriting and we generally require a minimum projected stabilized debt service coverage ratio of 1.20.

Although lending for residential construction and development deals with a different product type, many of the requirements previously mentioned, such as credit worthiness of the developer, up-front injection of the developer’s equity, re-margining requirements, and the viability of the project are also important in underwriting a residential development loan. Heavy consideration is given to market acceptance of the product, location, strength of the developer, and the ability of the developer to stay within budget. Progress inspections by qualified independent inspectors are routinely performed before disbursements are made. Loan agreements generally include limitations on the number of model homes and homes built on a spec basis, with preference given to pre-sold homes.

Real estate appraisals are ordered independently of the credit officer and the borrower, generally by each bank’s appraisal review function, which is staffed by certified appraisers. In some cases, reports from automated valuation services are used. Appraisals are ordered from outside appraisers at the inception, renewal or, for CRE loans, upon the occurrence of any event causing a “criticized” or “classified” grade to be assigned to the credit. The frequency for obtaining updated appraisals for these adversely graded credits is increased when declining market conditions exist. Advance rates, on an “as completed basis,” will vary based on the viability of the project and the creditworthiness of the sponsor, but corporate guidelines generally limit advances to 50% for raw land, 65% for land development, 65% for finished commercial lots, 75% for finished residential lots, 80% for pre-sold homes, 75% for models and spec homes, and 75% for commercial properties. Exceptions may be granted on a case-by-case basis.

Loan agreements require regular financial information on the project and the sponsor in addition to lease schedules, rent rolls, and on construction projects, independent progress inspection reports. The receipt of these schedules is closely monitored and calculations are made to determine adherence to the covenants set forth in the loan agreement. Additionally, the frequency of loan-by-loan reviews of pass grade loans has been increased to quarterly for all commercial and residential construction and land development loans at Zions Bank, Amegy, NBA, NSB, and Vectra. At CB&T such reviews are performed semi-annually.

Interest reserves are generally established as an expense item in the budget for real estate construction or development loans. We generally require borrowers to put their equity into the project at the inception of the construction. This enables the bank to ensure the availability of equity in the project. The Company’s practice is to monitor the construction, sales and/or leasing progress to determine whether or not the project remains viable. If at any time during the life of the credit the project is determined not to be viable, the bank

ZIONS BANCORPORATION AND SUBSIDIARIES

takes appropriate action to protect its collateral position via negotiation and/or legal action as deemed necessary. The bank then usually evaluates the appropriate use of interest reserves. At March 31, 2011, and March 31, 2010, Zions’ affiliates had 295 and 384 loans with an outstanding balance of $362 million and $887 million where available interest reserves amounted to $35 million and $89 million, respectively. In instances where projects have been determined not to be viable, the interest reserves and other appropriate disbursements have been frozen.

We have not been involved to any meaningful extent with insurance arrangements, credit derivatives, or any other default agreements as a mitigation strategy for commercial real estate loans. However, we do make use of personal or other guarantees as risk mitigation strategies.

Consumer Loans

The Company did not pursue subprime residential mortgage lending, including option ARM and negative amortization loans. It does have approximately $375 million of stated income mortgage loans with generally high FICO scores at origination, including “one-time close” loans to finance the construction of a home, which convert into permanent jumbo mortgages. As of March 31, 2011, approximately $52 million of the $375 million of stated income loans had FICO scores of less than 620. These totals exclude held-for-sale loans. Stated income loans account for approximately $4 million, or 57%, of our credit losses in 1-4 family residential first mortgage loans during the first quarter of 2011, and were primarily in Utah and Arizona.

The Company has mainly been an originator of first and second mortgages, generally considered to be of prime quality. Its practice historically has been to sell “conforming” fixed rate loans to third parties, including Fannie Mae and Freddie Mac, for which it makes representations and warranties as to meeting certain underwriting and collateral documentation standards. It has also been the Company’s practice historically to hold variable rate loans in its portfolio. The Company does not estimate that it has any material financial risk as a result of its foreclosure practices or loan “put-backs” by Fannie Mae or Freddie Mac, and has not established any reserves related to these items.

The Company is engaged in home equity credit line lending. Approximately $942 million of the Company’s $2.1 billion portfolio is secured by first deeds of trust, while the remaining balance is secured by junior liens. As of March 31 2011, loans representing approximately 15% of the outstanding balance in this portfolio were estimated to have loan-to-value ratios above 100%. Of the total home equity credit line portfolio, 0.32% was 90 or more days past due at March 31, 2011 as compared to 0.36% as of March 31, 2010. During the first quarter of 2011, the Company did not modify any home equity credit lines. The annualized credit losses for this portfolio were 117 and 127 basis points for the three months ended March 31, 2011 and March 31, 2010, respectively.

Nonperforming Assets

As reflected in the following table, the Company’s nonperforming lending related assets as a percentage of net loans and leases and OREO decreased during the first quarter of 2011. The percentage was 4.54% at March 31, 2011, compared with 7.04% at March 31, 2010, and 4.91% at December 31, 2010.

Total nonaccrual loans, excluding FDIC-supported loans, at March 31, 2011 decreased by $708 million from March 31, 2010. The decrease is primarily due to a $385 million decrease in construction and land development loans, a $143 million decrease in owner occupied loans, and a $107 million decrease in commercial and industrial loans. The greatest decreases in nonaccrual loans occurred at Zions Bank, Amegy, and NSB.

The following table sets forth the Company’s nonperforming lending-related assets:

ZIONS BANCORPORATION AND SUBSIDIARIES


(Amounts in millions)	March 31, 2011		December 31, 2010		March 31, 2010

Nonaccrual loans	$	1,379	$	1,493	$	2,087
Other real estate owned		225		259		367

Nonperforming lending-related assets, excluding FDIC-supported assets		1,604		1,752		2,454


FDIC-supported nonaccrual loans		33		36		284
FDIC-supported other real estate owned		44		40		47

FDIC-supported nonperforming lending-related assets		77		76		331

Total nonperforming lending-related assets	$	1,681	$	1,828	$	2,785


Ratio of nonperforming lending-related assets to net loans and leases ¹ and other real estate owned		4.54%		4.91%		7.04%
Accruing loans past due 90 days or more, excluding FDIC-supported loans	$	15	$	23	$	60
FDIC-supported loans past due 90 days or more		95		119		22

Ratio of accruing loans past due 90 days or more to net loans and leases ¹		0.30%		0.38%		0.21%

Nonaccrual loans and accruing loans past due 90 days or more	$	1,522	$	1,671	$	2,453
Ratio of nonaccrual loans and accruing loans past due 90 days or more to net loans and leases ¹		4.14%		4.52%		6.27%

Accruing loans past due 30 - 89 days, excluding FDIC-supported loans	$	234	$	263	$	462
FDIC-supported loans past due 30 - 89 days		22		27		56

Restructured loans included in nonaccrual loans		344		367		340
Restructured loans on accrual		369		388		211

¹	Includes loans held for sale.

TDR Loans

Nonaccrual loans also include nonperforming loans which have been restructured and classified as troubled debt restructured loans.

TDRs are loans which have been modified to accommodate a borrower who is experiencing financial difficulties, and for which the Company has granted a concession that it would not otherwise consider. These modifications are structured on a loan-by-loan basis, and depending on the circumstances, may include extended payment terms, a modified interest rate, forgiveness of principal (on occasion), or other concessions. However, not all modifications are TDRs; modifications are also performed in the normal course of business for borrowers that are not experiencing financial difficulty. Such modifications may be performed to meet the customer’s specific needs, to comply with contractual commitments, or for competitive reasons.

We consider many factors in determining whether to agree to a loan modification involving concessions, and seek a solution that will both minimize potential loss to the Company and attempt to help the borrower. We evaluate the borrower’s current and forecasted future cash flows, their ability and willingness to make current contractual or proposed modified payments, the value of the underlying collateral (if applicable), the possibility of obtaining additional security, and the potential costs related to a repossession or foreclosure and the subsequent sale of the collateral.

ZIONS BANCORPORATION AND SUBSIDIARIES

TDRs are classified as either accrual or nonaccrual loans. If a nonaccrual loan is restructured as a TDR, it will remain on nonaccrual status until the borrower has proven the ability to perform under the modified structure for a minimum of six months, and there is evidence that such payments can and are likely to continue as agreed. Most often, loans are classified as nonaccrual according to our nonaccrual policy when restructured as a TDR.

The following schedule provides the outstanding balances of our TDR loans.


	March 31, 2011						December 31, 2010
(In thousands)	Accruing		Nonaccruing		Total		Accruing		Nonaccruing		Total

Commercial:
Commercial and industrial	$	30,599	$	20,605	$	51,204	$	35,290	$	29,382	$	64,672
Leasing		–		–		–		446		202		648
Owner occupied		33,827		51,695		85,522		42,143		51,676		93,819
Municipal		–		–		–		–		–		–

Total commercial		64,426		72,300		136,726		77,879		81,260		159,139

Commercial real estate:
Construction and land development		129,235		163,892		293,127		124,571		177,617		302,188
Term		143,245		78,845		222,090		152,523		77,382		229,905

Total commercial real estate		272,480		242,737		515,217		277,094		254,999		532,093

Consumer:
Home equity credit line		30		87		117		110		512		622
1-4 family residential		31,556		23,132		54,688		29,947		24,520		54,467
Construction and other consumer real estate		789		5,122		5,911		2,845		5,311		8,156
Bankcard and other revolving plans		–		–		–		–		–		–
Other		–		646		646		131		533		664

Total consumer loans		32,375		28,987		61,362		33,033		30,876		63,909

Total	$	369,281	$	344,024	$	713,305	$	388,006	$	367,135	$	755,141

Commercial loan TDRs

Commercial loans (commercial lending (“C&I”) and commercial real estate (“CRE”)) may be modified to provide the borrower more time to complete the project, to achieve a higher lease-up percentage, to sell the property, or for other reasons. When it is in the best interest of the Company and the borrower to agree to a concession, we may modify the loan rather than to try to pursue collection through foreclosure or other means.

For certain troubled debt restructurings, we split the loan into two new notes – A and B notes. The A note is structured to comply with our current lending standards at current market rates, and is tailored to suit the customer’s ability to make timely interest and principal payments. The B note includes the granting of the concession to the borrower and varies by situation. We may defer principal and interest payments until the A note has been paid in full. The B note is charged-off but the obligation is not forgiven to the borrower, and any payments collected are accounted for as recoveries.

Consumer loan TDRs

Consumer loan TDRs represent loan modifications in which a concession has been granted to the borrower who is unable to refinance the loan with a new loan from another lender, or who is experiencing economic hardship. Such TDRs may include first-lien residential mortgage loans and home equity loans.

Other

ZIONS BANCORPORATION AND SUBSIDIARIES

In addition to the lending related nonperforming assets, the Company had $269 million in carrying value of investments in debt securities that were on nonaccrual status at March 31, 2011, compared to $195 million at March 31, 2010 and at December 31, 2010.

Allowance and Reserve for Credit Losses

In analyzing the adequacy of the allowance for loan losses, we utilize a comprehensive loan grading system to determine the risk potential in the portfolio and also consider the results of independent internal credit reviews. To determine the adequacy of the allowance, the Company’s loan and lease portfolio is broken into segments based on loan type.

The following table shows the changes in the allowance for loan losses and a summary of loan loss experience:


(Amounts in millions)	Three Months Ended March 31, 2011		Twelve Months Ended December 31, 2010		Three Months Ended March 31, 2010

Loans and leases outstanding (net of unearned income)	$	36,546	$	36,747	$	38,974

Average loans and leases outstanding (net of unearned income)	$	36,668	$	38,250	$	39,668

Allowance for loan losses:
Balance at beginning of period	$	1,440	$	1,531	$	1,531
Provision charged against earnings		60		852		266
Increase (decrease) in allowance covered by FDIC indemnification		(9)		26		12
Loans and leases charged-off:
Commercial		(66)		(417)		(97)
Commercial real estate		(75)		(517)		(116)
Consumer		(27)		(140)		(35)

Total		(168)		(1,074)		(248)

Recoveries:
Commercial		13		35		10
Commercial real estate		5		44		7
Consumer		4		12		2

Total		22		91		19

Charge-offs recoverable from FDIC		5		14		2

Net loan and lease charge-offs		(141)		(969)		(227)

Balance at end of period	$	1,350	$	1,440	$	1,582


Ratio of annualized net charge-offs to average loans and leases		1.54%		2.53%		2.29%

Ratio of allowance for loan losses to net loans and leases, at period end		3.69%		3.92%		4.06%

Ratio of allowance for loan losses to nonperforming loans, at period end		95.56%		94.22%		66.70%

Ratio of allowance for loan losses to nonaccrual loans and accruing loans past due 90 days or more, at period end		88.69%		86.21%		64.46%

ZIONS BANCORPORATION AND SUBSIDIARIES

The reserve for unfunded lending commitments represents a reserve for potential losses associated with off-balance sheet commitments and standby letters of credit. The reserve is separately shown in the Company’s consolidated balance sheet, and any related increases or decreases in the reserve are included in noninterest expense in the statement of income. The reserve increased by $5.9 million from March 31, 2010 and decreased by $9.5 million from December 31, 2010. The increase from March 31, 2010 is primarily due to increased demand for new lending commitments. Additionally, credit quality measures have improved over the past twelve months and were the primary reason for the decrease from December 31, 2010. See Note 5 of the Notes to Consolidated Financial Statements for additional information related to the allowance for credit losses.

Interest Rate and Market Risk Management

Interest rate and market risk are managed centrally. Interest rate risk is the potential for reduced income resulting from adverse changes in the level of interest rates on the Company’s net interest income. Market risk is the potential for loss arising from adverse changes in the fair value of fixed income securities, equity securities, other earning assets and derivative financial instruments as a result of changes in interest rates or other factors. As a financial institution that engages in transactions involving an array of financial products, the Company is exposed to both interest rate risk and market risk.

The Company’s Board of Directors is responsible for approving the overall policies relating to the management of the financial risk of the Company. The Boards of Directors of the Company’s subsidiary banks are also required to review and approve these policies. In addition, the Board establishes and periodically revises policy limits, and reviews limit exceptions reported by management. The Board has established the management ALCO to which it has delegated the functional management of interest rate and market risk for the Company.

Interest Rate Risk

Interest rate risk is one of the most significant risks to which the Company is regularly exposed. In general, our goal in managing interest rate risk is to have the net interest margin increase slightly in a rising interest rate environment. We refer to this goal as being slightly “asset-sensitive.” This approach is based on our belief that in a rising interest rate environment, the market cost of equity, or implied rate at which future earnings are discounted, would also tend to rise. The Company has positioned its March 31, 2011 balance sheet to be more asset sensitive than it was on March 31, 2010.

We attempt to minimize the impact of changing interest rates on net interest income primarily through the use of interest rate floors on variable rate loans, interest rate swaps, interest rate futures, and by avoiding large exposures to long-term fixed rate interest-earning assets that have significant negative convexity. The prime lending rate and the LIBOR curves are the primary indices used for pricing the Company’s loans. The interest rates paid on deposit accounts are set by individual banks so as to be competitive in each local market.

We monitor interest rate risk through the use of two complementary measurement methods: duration of equity and income simulation. In the duration of equity method, we measure the expected changes in the fair values of equity in response to changes in interest rates. In the income simulation method, we analyze the expected changes in income in response to changes in interest rates.

Duration of equity is derived by first calculating the dollar duration of all assets, liabilities and derivative instruments. Dollar duration is determined by calculating the fair value of each instrument assuming interest rates sustain immediate and parallel movements up 1% and down 1%. The average of these two changes in

ZIONS BANCORPORATION AND SUBSIDIARIES

fair value is the dollar duration. Subtracting the dollar duration of liabilities from the dollar duration of assets and adding the net dollar duration of derivative instruments results in the dollar duration of equity. Duration of equity is computed by dividing the dollar duration of equity by the fair value of equity. The Company’s policy is generally to maintain duration of equity between -3 years to +7 years. However, in the current low interest rate environment, the Company is operating with a duration of equity of less than -3 years in some planning scenarios.

Income simulation is an estimate of the net interest income and total rate sensitive income that would be recognized under different rate environments. Net interest income and total rate sensitive income are measured under several parallel and nonparallel interest rate environments and deposit repricing assumptions, taking into account an estimate of the possible exercise of options within the portfolio. For income simulation, Company policy requires that interest sensitive income from a static balance sheet be limited to a decline of no more than 10% during one year if rates were to immediately rise or fall in parallel by 200 basis points.

Both of these measurement methods require that we assess a number of variables and make various assumptions in managing the Company’s exposure to changes in interest rates. The assessments address loan and security prepayments, early deposit withdrawals, and other embedded options and noncontrollable events. As a result of uncertainty about the maturity and repricing characteristics of both deposits and loans, the Company estimates ranges of duration and income simulation under a variety of assumptions and scenarios. The Company’s interest rate risk position changes as the interest rate environment changes and is managed actively to try to maintain a slightly asset-sensitive position. However, positions at the end of any period may not be reflective of the Company’s position in any subsequent period.

We should note that estimated duration of equity and the income simulation results are highly sensitive to the assumptions used for deposits that do not have specific maturities, such as checking, savings, and money market accounts and also to prepayment assumptions used for loans with prepayment options. Given the uncertainty of these estimates, we view both the duration of equity and the income simulation results as falling within a wide range of possibilities.

As of the dates indicated, the following table shows the Company’s estimated range of duration of equity and percentage change in interest sensitive income, based on a static balance sheet, in the first year after the rate change if interest rates were to sustain an immediate parallel change of 200 basis points; the “fast” and “slow” results differ based on the assumed speed of repricing of administered-rate deposits (money market, interest-on-checking, and savings).


	March 31, 2011				December 31, 2010
	Low		High		Low		High

Duration of equity:
Range (in years)
Base case		-3.0		-1.0		-3.1		-1.2
Increase interest rates by 200 bp		-2.9		-1.4		-3.0		-1.4

	Deposit repricing response
	Fast		Slow		Fast		Slow
Income simulation – change in interest sensitive income:
Increase interest rates by 200 bp		2.8%		5.8%		3.1%		6.0%
Decrease interest rates by 200 bp¹		-3.1%		-3.3%		-2.5%		-2.7%

ZIONS BANCORPORATION AND SUBSIDIARIES

¹	In the event that a 200 basis point rate parallel decrease cannot be achieved, the applicable rate changes are limited to lesser amounts such that interest rates cannot be less than zero.

During the first three months of 2011, there were no significant changes in interest rate sensitivity when compared to the fourth quarter of 2010.

Market Risk – Fixed Income

The Company engages in the underwriting and trading of municipal and corporate securities. This trading activity exposes the Company to a risk of loss arising from adverse changes in the prices of these fixed income securities.

At March 31, 2011, the Company had $57 million of trading assets and $101 million of securities sold, not yet purchased, compared with $49 million and $43 million on December 31, 2010 and $51 million and $48 million on March 31, 2010, respectively.

The Company is exposed to market risk through changes in fair value and OTTI of HTM and AFS securities. The Company also is exposed to market risk for interest rate swaps and Eurodollar and Federal Funds futures contracts used to hedge interest rate risk. Changes in the fair value of AFS securities and in interest rate swaps that qualify as cash flow hedges are included in OCI each quarter. During the first quarter of 2011, the after-tax change in OCI attributable to HTM and AFS securities was $(27.8) million, and the change attributable to interest rate swaps was $(8.0) million. If any of the AFS securities or HTM securities transferred from AFS become other than temporarily impaired, any credit loss in OCI is reversed and the impairment is charged to operations. See “Investment Securities Portfolio” for additional information on OTTI.

Market Risk – Equity Investments

Through its equity investment activities, the Company owns equity securities that are publicly traded. In addition, the Company owns equity securities in companies that are not publicly traded, that are accounted for under cost, fair value, equity, or full consolidation methods of accounting, depending upon the Company’s ownership position and degree of involvement in influencing the investees’ affairs. In either case, the value of the Company’s investment is subject to fluctuation. Since the fair value of these securities may fall below the Company’s investment costs, the Company is exposed to the possibility of loss. These equity investments are approved, monitored and evaluated by the Company’s Equity Investment Committee.

The Company holds investments in pre-public venture capital companies through various venture funds. Additionally, Amegy has in place an alternative investments program. These investments are primarily directed towards equity buyout and mezzanine funds with a key strategy of deriving ancillary commercial banking business from the portfolio companies. Early stage venture capital funds generally are not part of the strategy since the underlying companies are typically not creditworthy.

Under the provisions of the Dodd-Frank Act, the Company is allowed to fund remaining unfunded portions of existing private equity fund commitments, but is not allowed to make any additional commitments to invest in private equity funds.

A more comprehensive discussion of the Company’s interest rate and market risk management is contained in the Company’s 2010 Annual Report on Form 10-K.

ZIONS BANCORPORATION AND SUBSIDIARIES

Liquidity Risk Management

Liquidity risk is the possibility that the Company’s cash flows may not be adequate to fund its ongoing operations and meet its commitments in a timely and cost-effective manner. Since liquidity risk is closely linked to both credit risk and market risk, many of the previously discussed risk control mechanisms also apply to the monitoring and management of liquidity risk. We manage the Company’s liquidity to provide adequate funds to meet its anticipated financial and contractual obligations, including withdrawals by depositors, debt service requirements and lease obligations, as well as to fund customers’ needs for credit. The management of liquidity and funding is performed centrally for both the Parent and its subsidiary banks.

Consolidated cash and interest-bearing deposits held by the Parent and its subsidiaries increased slightly to $5.6 billion at March 31, 2011 from $5.5 billion at December 31, 2010. The Parent and its subsidiaries also held $726 million and $706 million of U.S. Treasury Bills at March 31, 2011 and December 31, 2010, respectively.

Parent Company Liquidity: The Parent’s cash requirements consist primarily of debt service, investments in and advances to subsidiaries, operating expenses, income taxes, and dividends to preferred and common shareholders, including the CPP preferred equity issued to the U.S. Department of the Treasury under the TARP program. The Parent’s cash needs are usually met through dividends from its subsidiaries, interest and investment income, subsidiaries’ proportionate share of current income taxes, equity contributed through the exercise of stock options, and long-term debt and equity issuances.

The Parent has not had to increase its investment in any of its subsidiary banks since the first quarter of 2010, and does not anticipate any need to make further capital investments in its bank subsidiaries in 2011. However, consistent with prior quarters since the second quarter of 2009, during the first quarter of 2011, the Parent did not receive dividends on common or preferred stock from its banking subsidiaries. The dividends the banking subsidiaries can pay to the Parent are restricted by current and historical earnings levels, retained earnings, and risk-based and other regulatory capital requirements. Several of the Company’s subsidiary banks returned to profitability over the course of 2010, and during the first quarter of 2011 all of the Company’s bank segments recorded a profit. This return to profitability, which we currently expect will be sustained, may permit the payment of some dividends by the banks to the Parent, or a return of some capital to the Parent in 2011. However, the Company has held the dividend on its common stock to $0.01 per share per quarter in order to conserve both capital and cash at the Parent.

Federal Reserve Board Supervisory Letter SR 09-4, dated February 24, 2009 (as revised March 27, 2009), reiterates and expands previous guidance to bank holding companies regarding the payment of common dividends, preferred dividends, and dividends on more senior capital instruments in times of stress on earnings and capital ratios. On November 17, 2010 the Federal Reserve Board issued a revised temporary addendum to this letter stating that bank holding companies should consult with the Federal Reserve staff before taking any capital actions, including actions that could result in a diminished capital base, such as increasing dividends, implementing common stock repurchase programs, or redeeming or repurchasing capital instruments.

General financial market and economic conditions, both of which have been highly stressed since mid-2008 or earlier, as well as the Company’s debt ratings, have adversely impacted the Company’s access to and cost of external financing. However, these adverse impacts have begun to moderate significantly in more recent quarters. Access to funding markets for the Parent and subsidiary banks is directly impacted by the credit ratings they receive from various rating agencies. The ratings not only influence the costs associated with the borrowings but can also influence the sources of the borrowings. The debt ratings and outlooks issued by the various rating agencies for the Company did not change during the first three months of 2011. One rating agency, Moody’s, rates the Company’s senior debt as B2 or noninvestment grade, while Standard & Poor’s,

ZIONS BANCORPORATION AND SUBSIDIARIES

Fitch and DBRS all rate the Company’s senior debt at a low investment grade level. In addition, all four rating agencies rate the Company’s subordinated debt as noninvestment grade. Moody’s and Fitch’s outlooks for the company are positive and stable, respectively, while the other two agencies have a negative outlook for the Company.

During the first quarter of 2011, the primary source of additional cash to the Parent in the capital markets was $25 million from the issuance of new shares of common stock. The Parent had a cash balance of $509 million at March 31, 2011 compared to a cash balance of $550 million at December 31, 2010. In addition, the Parent had $700 million of U.S. Treasury Bills at both March 31, 2011 and December 31, 2010.

The following table presents the Parent’s balance sheet at March 31, 2011, December 31, 2010, and March 31, 2010.

Parent Only Condensed Balance Sheets


(In thousands)	March 31, 2011		December 31, 2010		March 31, 2010

ASSETS
Cash and due from banks	$	2,011	$	1,848	$	–
Interest-bearing deposits		507,099		547,665		605,108
Investment securities:
Held-to-maturity, at adjusted cost (approximate fair value of $15,738, $4,056 and $3,767)		15,166		3,593		3,767
Available-for-sale, at fair value		1,179,271		1,146,797		538,759
Loans, net of unearned fees of $0, $0 and $0 and allowance for loan losses of $31, $71 and $64		1,497		2,852		2,859
Other noninterest-bearing investments		52,448		55,560		60,160
Investments in subsidiaries:
Commercial banks and bank holding company		6,803,545		6,739,699		6,681,137
Other operating companies		71,469		70,272		62,709
Nonoperating – ZMFU II, Inc.¹		93,102		93,003		92,354
Receivables from subsidiaries:
Other		1,400		1,150		1,550
Other assets		293,122		253,773		51,791

	$	9,020,130	$	8,916,212	$	8,100,194

LIABILITIES AND SHAREHOLDERS’ EQUITY
Other liabilities	$	189,718	$	182,094	$	259,776
Commercial paper:
Due to affiliates		45,984		45,991		49,986
Due to others		18,163		2,647		3,123
Other short-term borrowings
Due to affiliates		101,818		72,204		86
Due to others		160,645		160,604		172,128
Subordinated debt to affiliated trusts		309,278		309,278		309,278
Long-term debt
Due to affiliates		93,218		110,208		59
Due to others		1,355,454		1,384,907		1,463,552

Total liabilities		2,274,278		2,267,933		2,257,988

Shareholders’ equity:
Preferred stock		2,162,399		2,056,672		1,532,323
Common stock		4,178,369		4,163,619		3,517,621
Retained earnings		904,247		889,284		1,220,439
Accumulated other comprehensive income (loss)		(499,163)		(461,296)		(428,177)

Total shareholders’ equity		6,745,852		6,648,279		5,842,206

	$	9,020,130	$	8,916,212	$	8,100,194

¹	ZMFU II, Inc. is a wholly-owned nonoperating subsidiary whose sole purpose is to hold a portfolio of municipal bonds, loans and leases.

ZIONS BANCORPORATION AND SUBSIDIARIES

Interest-bearing deposits include $218 million pledged to certain subsidiary banks for intercompany borrowings.

During the first quarters of 2011 and 2010, the Parent’s operating expenses included cash payments for interest of approximately $40 million and $41 million, respectively. Additionally, the Parent paid approximately $35 million and $23 million of dividends on preferred and common stock, respectively, for the same applicable periods.

Short-term borrowings by the Parent exceeded repayments, which resulted in approximately $16 million of cash inflows during the first quarter of 2011.

At March 31, 2011, maturities of the Company’s long-term senior and subordinated debt ranged from August 2011 to November 2015.

Subsidiary Bank Liquidity: The subsidiary banks’ primary source of funding is their core deposits, consisting of demand, savings and money market deposits, time deposits under $100,000, and foreign deposits. At March 31, 2011, these core deposits, excluding brokered deposits, in aggregate, constituted 94.2% of consolidated deposits, compared with 93.5% of consolidated deposits at December 31, 2010. On a consolidated basis, the Company’s net loan to total deposit ratio is historically low at 90.0%, another measure of strong bank liquidity.

Total deposits decreased by $343 million during the first three months of 2011 due to our efforts to reduce excess liquidity, which primarily resulted in decreases in money market, time and foreign deposits, including brokered deposits, partially offset by increases in noninterest-bearing demand and savings and NOW deposits. Brokered deposits were only 0.7% of total deposits at March 31, 2011.

On July 21, 2010, the Dodd-Frank Wall Street Reform and Consumer Protection Act made permanent the maximum deposit insurance amount of $250,000. On November 9, 2010 the FDIC issued a final rule providing temporary unlimited insurance coverage for noninterest-bearing transaction accounts at all FDIC-insured depository institutions, effective December 31, 2010 through December 31, 2012.

The FHLB system, has, from time to time, been a significant source of liquidity for each of the Company’s subsidiary banks. Zions Bank and TCBW are members of the FHLB of Seattle. CB&T, NSB, and NBA are members of the FHLB of San Francisco. Vectra is a member of the FHLB of Topeka and Amegy Bank is a member of the FHLB of Dallas. The FHLB allows member banks to borrow against their eligible loans to satisfy liquidity requirements. At March 31, 2011, the amount available for additional FHLB and Federal Reserve borrowings was approximately $13.1 billion. At both March 31, 2011 and December 31, 2010 the Company had $20 million of long-term borrowings outstanding.

While not considered a primary source of funding, the Company’s investment activities can provide or use cash, depending on the asset-liability management posture that is being taken. For the first quarter of 2011, investment securities activities resulted in a decrease in investment securities holdings and a net increase of cash in the amount of $46 million.

Maturing balances in our subsidiary banks’ loan portfolios also provide additional flexibility in managing cash flows. During the first quarter of 2011, organic loan activity resulted in a net cash outflow of $45 million, as a result of a slight increase in loan demand.

ZIONS BANCORPORATION AND SUBSIDIARIES

During the first quarters of 2011 and 2010, the Company received net cash income tax refunds of $0.1 million and $352.8 million, respectively, the majority of which was for the benefit of our subsidiary banks and the remainder for the benefit of the Parent.

A more comprehensive discussion of our liquidity management is contained in Zions’ 2010 Annual Report on Form 10-K.

Operational Risk Management

Operational risk is the potential for unexpected losses attributable to human error, systems failures, fraud, or inadequate internal controls and procedures. In its ongoing efforts to identify and manage operational risk, the Company has a Corporate Risk Management Department whose responsibility is to help management identify and assess key risks and monitor the key internal controls and processes that the Company has in place to mitigate operational risk. We have documented controls and the Control Self Assessment related to financial reporting under Section 404 of the Sarbanes-Oxley Act of 2002 and the Federal Deposit Insurance Corporation Improvement Act of 1991.

To manage and minimize its operating risk, the Company has in place transactional documentation requirements, systems and procedures to monitor transactions and positions, regulatory compliance reviews, and periodic reviews by the Company’s internal audit and credit examination departments. In addition, reconciliation procedures have been established to ensure that data processing systems consistently and accurately capture critical data. Further, we maintain contingency plans and systems for operations support in the event of natural or other disasters. Efforts are continually underway to improve the Company’s oversight of operational risk, including enhancement of risk-control self assessments and of antifraud measures reporting to the Enterprise Risk Management Committee and the Board. We also mitigate operational risk through the purchase of insurance, including errors and omissions and professional liability insurance.

CAPITAL MANAGEMENT

We believe that a strong capital position is vital to continued profitability and to promoting depositor and investor confidence.

Note 7 of the Notes to Consolidated Financial Statements discusses the Company’s debt and equity transactions during the first three months of 2011.

Total controlling interest shareholders’ equity at March 31, 2011 was $6,745.9 million compared to $6,648.3 million at December 31, 2010, and $5,842.2 million at March 31, 2010. The increase in total controlling interest shareholders’ equity from December 31, 2010 is primarily due to $85.8 million of subordinated debt converting into preferred stock, $52.8 million of net income applicable to controlling interest, and $25.0 million from the issuance of common stock partially offset by $35.8 million of unrealized losses on investment securities and derivative instruments recorded in other comprehensive income and $34.6 million of dividends paid on preferred and common stock.

Unrealized losses on securities of $27.8 million recognized in other comprehensive income during the first quarter of 2011 resulted primarily from incorporating additional trading prices into our valuation models for senior tranches of our bank and insurance TruPS CDO securities. During the quarter the level of trades on certain of the original AAA-rated securities increased to the point where they received more weight in our valuation models. We do not believe further near-term increases in trading volumes in these senior tranches, if any, will result in another significant decline in unrealized securities values.

ZIONS BANCORPORATION AND SUBSIDIARIES

Conversions of convertible subordinated debt into preferred stock have augmented the Company’s capital position and reduced future refinancing needs. From the original modification in June 2009 through March 31, 2011, $492 million of debt has been extinguished and $575 million of preferred capital has been added. The following schedule shows the effect the conversions had on Tier 1 capital and outstanding convertible subordinated debt during 2010 and during the first quarter of 2011.

Additionally, on April 19, 2011, the Company filed a Form 8-K disclosing that holders of convertible subordinated notes elected to convert a combined $138.5 million principal amount of these notes into the Company’s preferred stock. The Company expects an additional 138,269 shares of Series C and 200 shares of Series A preferred stock will be issued on May 16, 2011, unless the elections are revoked prior to that date. Also $23.1 million of the original beneficial conversion feature will be reclassified into preferred stock from common stock as a result of this conversion. The expected pretax accelerated discount amortization attributable to the conversions is approximately $61.4 million in the second quarter of 2011, which compares to $41.0 million in the first quarter of 2011 and $73.3 million in the fourth quarter of 2010.


	Three Months Ended
	*Pro Forma*
(In millions)	June 30, 2011		March 31, 2011		December 31, 2010		September 30, 2010		June 30, 2010		March 31, 2010

Preferred equity
Convertible subordinated debt converted to preferred stock	$	138,469	$	85,849	$	151,034	$	54,259	$	116,624	$	21,034
Beneficial conversion feature reclassified from common to preferred stock		23,139		14,605		24,991		9,231		19,034		3,578

Change in preferred equity		161,608		100,454		176,025		63,490		135,658		24,612
Common equity
Accelerated convertible subordinated debt amortization, net of tax		(50,037)		(33,322)		(59,887)		(22,322)		(58,662)		(6,905)
Beneficial conversion feature reclassified from common to preferred stock		(23,139)		(14,605)		(24,991)		(9,231)		(19,034)		(3,578)

Change in common equity		(73,176)		(47,927)		(84,878)		(31,553)		(77,696)		(10,483)

Net impact on Tier 1 capital	$	88,432	$	52,527	$	91,147	$	31,937	$	57,962	$	14,129


Convertible subordinated debt outstanding	$	579,156	$	717,625	$	803,474	$	954,509	$	1,008,768	$	1,125,392

The Company’s $25.0 million net proceeds from the issuance of common stock and the $52.8 million of net income applicable to controlling interest during the quarter more than offset the $47.9 million decrease in common equity resulting from the debt conversions.

The Company paid $1.8 million in dividends on common stock during the first quarter of 2011.This is unchanged from the rate paid since the third quarter of 2009. Under the terms of the CPP, the Company may not increase the dividend on its common stock above $0.32 per share per quarter during the period the senior preferred shares are outstanding without adversely impacting the Company’s interest in the program or without permission from the U.S. Department of the Treasury.

The Company recorded preferred stock dividends of $38.1 million and $26.3 million during the first three months of 2011 and 2010, respectively. Preferred dividends for the first three months of 2011 and 2010 include $22.8 million and $22.4 million, respectively, related to the TARP preferred stock issued to the U.S. Department of the Treasury, consisting of cash payments of $17.5 million in both the first quarters of 2011

ZIONS BANCORPORATION AND SUBSIDIARIES

and 2010 and accretion of $5.3 million and $4.9 million in the first quarters of 2011 and 2010, respectively, for the difference between the fair value and par amount of the TARP preferred stock when issued.

Banking organizations are required under published regulations to maintain adequate levels of capital as measured by several regulatory capital ratios. As of March 31, 2011, the Company’s capital ratios were as follows:

CAPITAL RATIOS


	March 31, 2011			December 31, 2010			March 31, 2010

Tangible common equity ratio		7.01	%		6.99	%		6.30	%
Tangible equity ratio		11.36	%		11.10	%		9.36	%
Average equity to average assets (three months ended)		13.25	%		12.80	%		11.16	%

Risk-based capital ratios:
Tier 1 common to risk-weighted assets		9.32	%		8.95	%		7.14	%
Tier 1 leverage		13.14	%		12.56	%		10.77	%
Tier 1 risk-based capital		15.46	%		14.78	%		11.19	%
Total risk-based capital		17.77	%		17.15	%		13.93	%

The Company expects that it (and the banking industry as a whole) will be required by market forces and/or regulation, including new standards (“Basel III”) promulgated in December 2010 by the Basel Committee on Banking Supervision, to operate with higher capital ratios than in the past. In addition, the CPP capital preferred dividend is scheduled to increase from 5% to 9% in 2013, making it more expensive as a source of capital if not redeemed at or prior to that time. Thus, in addition to maintaining higher levels of capital, the Company’s capital structure may continue to be subject to greater variation over the next few years than has been true historically, due to the still highly uncertain economic and regulatory environments. Therefore, in 2011, continuing to preserve and augment capital in response to these uncertainties and in preparation for the eventual repayment of TARP CPP preferred stock are likely to take precedence over making capital investments to expand the business, or returning capital to shareholders in the form of higher dividends or share repurchases.

At March 31, 2011, regulatory Tier 1 risk-based capital and total risk-based capital were $6,576 million and $7,558 million compared to $6,350 million and $7,364 million at December 31, 2010, and $5,467 million and $6,802 million at March 31, 2010, respectively.

GAAP to NON-GAAP RECONCILIATIONS

1. Tier 1 common equity

Traditionally, the Federal Reserve and other banking regulators have assessed a bank’s capital adequacy based on Tier 1 capital, the calculation of which is codified in federal banking regulations. Regulators have begun supplementing their assessment of the capital adequacy of a bank based on a variation of Tier 1 capital, known as Tier 1 common equity. The Tier 1 common equity ratio is the core capital component of the Basel III standards, and we believe that it increasingly is becoming a key ratio considered by regulators, investors and analysts. Because Tier 1 common equity is not formally defined by generally accepted accounting principles (“GAAP”) or codified in the federal banking regulations, this measure is considered to be a non-GAAP financial measure and other entities may calculate them differently than the Company’s disclosed calculations. Since banking regulators, investors and analysts may assess the Company’s capital

ZIONS BANCORPORATION AND SUBSIDIARIES

adequacy using Tier 1 common equity, we believe that it is useful to provide them the ability to assess the Company’s capital adequacy on this same basis.

Tier 1 common equity is often expressed as a percentage of risk-weighted assets. Under the current risk-based capital framework, a bank’s balance sheet assets and credit equivalent amounts of off-balance sheet items are assigned to one of four broad “Basel I” risk categories for banks, like our banking subsidiaries, that have not adopted the Basel II “Advanced Measurement Approach.” The aggregated dollar amount in each category is then multiplied by the risk weighting assigned to that category. The resulting weighted values from each of the four categories are added together and this sum is the risk-weighted assets total that, as adjusted, comprises the denominator of certain risk-based capital ratios. Tier 1 capital is then divided by this denominator (risk-weighted assets) to determine the Tier 1 capital ratio. Adjustments are made to Tier 1 capital to arrive at Tier 1 common equity. Tier 1 common equity is also divided by the risk-weighted assets to determine the Tier 1 common equity ratio. The amounts disclosed as risk-weighted assets are calculated consistent with banking regulatory requirements.

The schedule below provides a reconciliation of controlling interest shareholders’ equity (GAAP) to Tier 1 capital (regulatory) and to Tier 1 common equity (non-GAAP) using current U.S. regulatory treatment and not proposed Basel III calculations.

TIER 1 COMMON EQUITY (NON-GAAP)


(Amounts in millions)	March 31, 2011			December 31, 2010			March 31, 2010

Controlling interest shareholders’ equity (GAAP)	$	6,746		$	6,648		$	5,842
Accumulated other comprehensive loss (income)		499			461			428
Nonqualifying goodwill and intangibles		(1,097	)		(1,103	)		(1,122	)
Disallowed deferred tax assets		(18	)		(106	)		(129	)
Other regulatory adjustments		(2	)		2			–
Qualifying trust preferred securities		448			448			448

Tier 1 capital (regulatory)		6,576			6,350			5,467
Qualifying trust preferred securities		(448	)		(448	)		(448	)
Preferred stock		(2,162	)		(2,057	)		(1,532	)

Tier 1 common equity (non-GAAP)	$	3,966		$	3,845		$	3,487

Risk-weighted assets (regulatory)	$	42,535		$	42,950		$	48,845
Tier 1 common to risk-weighted assets (non-GAAP)		9.32	%		8.95	%		7.14	%

2. Core net interest margin

This Form 10-Q presents a “core net interest margin” which excludes the effects of the (1) periodic discount amortization on convertible subordinated debt; (2) accelerated discount amortization on convertible subordinated debt which has been converted; and (3) additional accretion of interest income on acquired loans based on increased projected cash flows.

The schedule below provides a reconciliation of net interest margin (GAAP) to core net interest margin (non-GAAP).

ZIONS BANCORPORATION AND SUBSIDIARIES

CORE NET INTEREST MARGIN (NON-GAAP)


	Three Months Ended
	March 31, 2011			December 31, 2010			March 31, 2010

Net interest margin as reported (GAAP)		3.76	%		3.49	%		4.03	%
Addback for the impact on net interest margin of:
Discount amortization on convertible subordinated debt		0.11	%		0.12	%		0.13	%
Accelerated discount amortization on convertible subordinated debt		0.36	%		0.62	%		0.10	%
Additional accretion of interest income on acquired loans		-0.17	%		-0.16	%		–

Core net interest margin (non-GAAP)		4.06	%		4.07	%		4.26	%

3. Income (loss) before income taxes and subordinated debt conversions

This Form 10-Q presents “income (loss) before income taxes and subordinated debt conversions” which excludes the effects of the (1) periodic discount amortization on convertible subordinated debt and (2) accelerated discount amortization on convertible subordinated debt which has been converted.

The schedule on page 48 provides a reconciliation of income (loss) before income taxes (GAAP) to income (loss) before income taxes and subordinated debt conversions (non-GAAP).

4. Total shareholders’ equity to tangible equity and tangible common equity

This Form 10-Q presents “tangible equity” and “tangible common equity” which excludes goodwill and core deposit and other intangibles for both measures and preferred stock and noncontrolling interests for tangible common equity.

The following schedule provides a reconciliation of total shareholders’ equity (GAAP) to both tangible equity (non-GAAP) and tangible common equity (non-GAAP).

TANGIBLE EQUITY (NON-GAAP) AND

TANGIBLE COMMON EQUITY (NON-GAAP)


(Amounts in millions)	March 31, 2011		December 31, 2010		March 31, 2010

Total shareholders’ equity (GAAP)	$	6,745	$	6,647	$	5,857
Goodwill		(1,015)		(1,015)		(1,015)
Core deposit and other intangibles		(82)		(88)		(107)

Tangible equity (non-GAAP) (a)		5,648		5,544		4,735
Preferred stock		(2,162)		(2,057)		(1,532)
Noncontrolling interests		1		1		(15)

Tangible common equity (non-GAAP) (b)	$	3,487	$	3,488	$	3,188


Total assets (GAAP)	$	50,808	$	51,035	$	51,713
Goodwill		(1,015)		(1,015)		(1,015)
Core deposit and other intangibles		(82)		(88)		(107)

Tangible assets (non-GAAP) (c)	$	49,711	$	49,932	$	50,591


Tangible equity ratio (a/c)		11.36%		11.10%		9.36%
Tangible common equity ratio (b/c)		7.01%		6.99%		6.30%

ZIONS BANCORPORATION AND SUBSIDIARIES

For items 2, 3 and 4, the identified adjustments to reconcile from the applicable GAAP financial measures to the non-GAAP financial measures are included where applicable in financial results or in the balance sheet presented in accordance with GAAP. We consider these adjustments to be relevant to ongoing operating results and financial position.

We believe that excluding the amounts associated with these adjustments to present the non-GAAP financial measures provides a meaningful base for period-to-period and company-to-company comparisons, which will assist investors and analysts in analyzing the operating results or financial position of the Company and in predicting future performance. These non-GAAP financial measures are used by management and the Board of Directors to assess the performance of the Company’s business or its financial position for evaluating bank reporting segment performance, for presentations of Company performance to investors, and for other reasons as may be requested by investors and analysts. We further believe that presenting these non-GAAP financial measures will permit investors and analysts to assess the performance of the Company on the same basis as that applied by management and the Board of Directors.

Non-GAAP financial measures have inherent limitations, are not required to be uniformly applied, and are not audited. Although these non-GAAP financial measures are frequently used by stakeholders in the evaluation of a company, they have limitations as an analytical tool, and should not be considered in isolation or as a substitute for analyses of results as reported under GAAP.

ITEM 3.

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest rate and market risks are among the most significant risks regularly undertaken by the Company, and they are closely monitored as previously discussed. A discussion regarding the Company’s management of interest rate and market risk is included in the section entitled “Interest Rate and Market Risk Management” in this Form 10-Q.

ITEM 4.

CONTROLS AND PROCEDURES

The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Offer, has evaluated the effectiveness of the Company’s disclosure controls and procedures as of March 31, 2011. Based on that evaluation, the Company’s Chief Executive Officer and Chief Financial Offer concluded that the Company’s disclosure controls and procedures were effective as of March 31, 2011. There were no material changes in the Company’s internal control over financial reporting during the first quarter of 2011.

PART II. OTHER

INFORMATION

ITEM 1.

LEGAL PROCEEDINGS

The information contained in Note 10 of the Notes to Consolidated Financial Statements is incorporated by reference herein.

ITEM 1A.

RISK FACTORS

The Company believes there have been no significant changes in risk factors compared to the factors identified in Zions Bancorporation’s 2010 Annual Report on Form 10-K; however, this filing contains updated disclosures related to significant risk factors discussed in “Investment Securities Portfolio,” “Credit Risk Management,” “Market Risk – Fixed Income,” and “Liquidity Risk Management.”

ZIONS BANCORPORATION AND SUBSIDIARIES

ITEM 2.

UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Share Repurchases

The following table summarizes the Company’s share repurchases for the first quarter of 2011:

Period

Total number
of shares
repurchased ¹

Average
price paid
per share

Total number of shares
purchased as part of
publicly announced
plans or programs

Approximate dollar
value of shares that
may yet be purchased
under the plan

January

16,552

24.39

–

February

16,447

24.30

–

March

288

22.84

–

First quarter

33,287

24.33

–

Represents common shares acquired from employees in connection with the Company’s stock compensation plan. Shares were acquired from employees to pay for their payroll taxes upon the vesting of restricted stock and settlement of restricted stock units under the “withholding shares” provision of an employee share-based compensation plan.

ITEM 6.

EXHIBITS

a) Exhibits


Exhibit Number	Description

3.1	Restated Articles of Incorporation of Zions Bancorporation dated November 8, 1993, incorporated by reference to Exhibit 3.1 of Form S-4 filed on November 22, 1993.	*

3.2	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated April 30, 1997, incorporated by reference to Exhibit 3.2 of Form 10-Q for the quarter ended March 31, 2008.	*

3.3	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated April 24, 1998, incorporated by reference to Exhibit 3.3 of Form 10-Q for the quarter ended March 31, 2009.	*

3.4	Articles of Amendment to Restated Articles of Incorporation of Zions Bancorporation dated April 25, 2001, incorporated by reference to Exhibit 3.6 of Form S-4 filed July 13, 2001.	*

3.5	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation, dated December 5, 2006, incorporated by reference to Exhibit 3.1 of Form 8-K filed December 7, 2006.	*

ZIONS BANCORPORATION AND SUBSIDIARIES


Exhibit Number	Description

3.6	Articles of Merger of The Stockmen’s Bancorp, Inc. with and into Zions Bancorporation, effective January 17, 2007, incorporated by reference to Exhibit 3.6 of Form 10-K for the year ended December 31, 2006.	*

3.7	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation, dated July 7, 2008, incorporated by reference to Exhibit 3.1 of Form 8-K filed July 8, 2008.	*

3.8	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation, dated November 12, 2008, incorporated by reference to Exhibit 3.1 of Form 8-K filed November 17, 2008.	*

3.9	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation, dated June 30, 2009, incorporated by reference to Exhibit 3.1 of Form 8-K filed July 2, 2009.	*

3.10	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated June 30, 2009, incorporated by reference to Exhibit 3.10 of Form 10-Q for the quarter ended June 30, 2009.	*

3.11	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated June 1, 2010, incorporated by reference to Exhibit 3.1 of Form 8-K filed June 3, 2010.	*

3.12	Articles of Amendment to the Restated Articles of Incorporation of Zions Bancorporation dated June 14, 2010, incorporated by reference to Exhibit 3.1 of Form 8-K filed June 15, 2010.	*

3.13	Amended and Restated Bylaws of Zions Bancorporation dated May 4, 2007, incorporated by reference to Exhibit 3.2 of Form 8-K filed on May 9, 2007.	*

31.1	Certification by Chief Executive Officer required by Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934 (filed herewith).

31.2	Certification by Chief Financial Officer required by Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934 (filed herewith).

ZIONS BANCORPORATION AND SUBSIDIARIES



		* Incorporated by reference

ZIONS BANCORPORATION AND SUBSIDIARIES

S I G N A T U R E S

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

ZIONS BANCORPORATION

/s/ HARRIS H. SIMMONS

Harris H. Simmons, Chairman, President

and Chief Executive Officer

/s/ DOYLE L. ARNOLD

Doyle L. Arnold, Vice Chairman

and Chief Financial Officer

Date: May 10, 2011