MFS CALIFORNIA INSURED MUNICIPAL FUND N-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF

REGISTERED MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-9537

MFS CALIFORNIA INSURED MUNICIPAL FUND

(Exact name of registrant as specified in charter)

500 Boylston Street, Boston, Massachusetts 02116

(Address of principal executive offices) (Zip code)

Susan S. Newton

Massachusetts Financial Services Company

500 Boylston Street

Boston, Massachusetts 02116

(Name and address of agents for service)

Registrant’s telephone number, including area code: (617) 954-5000

Date of fiscal year end: November 30

Date of reporting period: February 28, 2009


ITEM 1. SCHEDULE OF INVESTMENTS.


LOGO


MFS California Insured Municipal Fund

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/09

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – 174.3%

     

Airport & Port Revenue – 7.1%

     

Port of Oakland, CA, “A”, MBIA, 5%, 2026

   $ 500,000    $ 392,985

Port of Oakland, CA, “K”, FGIC, 5.75%, 2029

     1,000,000      858,550

San Diego County, CA, Regional Airport Authority, AMBAC, 5.25%, 2020

     500,000      450,945

San Francisco, CA, City & County Airports Commission, International Airport Rev., 5.5%, 2019 (a)

     270,000      272,176
         
      $ 1,974,656
         

General Obligations - General Purpose – 7.4%

     

State of California, AMBAC, 6%, 2017

   $ 1,000,000    $ 1,123,590

State of California, AMBAC, 5%, 2034

     1,000,000      912,170
         
      $ 2,035,760
         

General Obligations - Schools – 31.6%

     

Allan Hancock, CA, Joint Community College (Election of 2006), “A”, FSA, 4.375%, 2031

   $ 100,000    $ 84,391

Beverly Hills, CA, Unified School District (Election of 2008), 0%, 2029

     665,000      205,818

Chabot Las Positas, CA, Community College (Election of 2004), “B”, AMBAC, 0%, 2026

     970,000      352,488

Culver City, CA, School Facilities Financing Authority Rev. (Culver City Unified School District), FSA, 5.5%, 2025

     1,000,000      1,074,100

Pomona, CA, Unified School District, “A”, MBIA, 6.55%, 2029

     1,000,000      1,000,410

Rancho Santiago, CA, Community College District, FSA, 5.125%, 2029

     175,000      177,784

Rescue, CA, Unified School District (Election of 1998), MBIA, 0%, 2026

     1,125,000      409,635

San Diego, CA, Community College (Election of 2002), FSA, 5%, 2020

     500,000      536,620

San Diego, CA, Unified School District (Election of 1998), “E-2”, FSA, 5.5%, 2025

     1,500,000      1,646,430

Union, CA, Elementary School District, “A”, FGIC, 0%, 2018

     1,630,000      1,113,013

Vallejo City, CA, Unified School District, “A”, MBIA, 5.9%, 2025

     500,000      465,495

West Contra Costa, CA, Unified School District, “A”, MBIA, 5.7%, 2023

     500,000      490,320

West Covina, CA, Unified School District, “A”, MBIA, 5.8%, 2021

     500,000      509,635

Yuba City, CA, Unified School District, FGIC, 0%, 2018

     1,000,000      657,920
         
      $ 8,724,059
         

Healthcare Revenue - Hospitals – 14.8%

     

California Municipal Finance Authority, COP (Community Hospitals of Central California), 5.25%, 2027

   $ 250,000    $ 184,563

California Statewide Communities Development Authority Rev. (Adventist), ASSD GTY, 5%, 2037

     405,000      332,456

California Statewide Communities Development Authority Rev. (Catholic Healthcare West) “K”, ASSD GTY, 5.5%, 2041

     1,000,000      879,470

California Statewide Communities Development Authority Rev. (Daughters of Charity Health), “A”, 5.25%, 2030

     500,000      341,895

California Statewide Communities Development Authority Rev. (Kaiser Permanente), “B”, BHAC, 5%, 2041

     540,000      506,493

California Statewide Communities Development Authority Rev. (St. Joseph Health System), FGIC, 5.75%, 2047

     500,000      480,275

Oakland, CA, Rev. (Harrison Foundation), “A”, AMBAC, 6%, 2010 (c)

     1,000,000      1,043,770

Santa Clara County, CA, Financing Authority Rev. (El Camino Hospital), AMBAC, 5.125%, 2041

     400,000      330,460
         
      $ 4,099,382
         

Healthcare Revenue - Long Term Care – 4.6%

     

ABAG Finance Authority for Non-Profit Corps. (Odd Fellows Home), MBIA, 6%, 2024

   $ 1,000,000    $ 986,100

California Statewide Communities Development Authority Rev. (Eskaton Properties, Inc.), 8.25%, 2010 (c)

     250,000      280,068
         
      $ 1,266,168
         

Human Services – 0.4%

     

California Statewide Communities Development Authority Rev. (Inland Regional

     

Center), 5.375%, 2037

   $ 140,000    $ 101,779
         

 

1


MFS California Insured Municipal Fund

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/09 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Miscellaneous Revenue - Other – 5.4%

     

ABAG Finance Authority Rev. (Jackson Lab), 5.75%, 2037

   $ 385,000    $ 332,113

California Infrastructure & Economic Development Bank Rev. (Walt Disney Family Museum), 5.25%, 2033

     160,000      149,077

San Francisco, CA, City & County Redevelopment Agency, Hotel Tax Rev., FSA, 6.75%, 2025

     1,000,000      999,910
         
      $ 1,481,100
         

Single Family Housing - Local – 0.1%

     

California Rural Home Mortgage Finance Authority Rev., Mortgage Backed Securities Program, “A”, GNMA, 6.35%, 2029

   $ 15,000    $ 15,352

California Rural Home Mortgage Finance Authority Rev., Mortgage Backed Securities Program, “B4”, GNMA, 6.35%, 2029

     20,000      20,202
         
      $ 35,554
         

Single Family Housing - State – 3.0%

     

California Housing Finance Agency Rev., Home Mortgage, “E”, FGIC, 5.05%, 2026

   $ 995,000    $ 837,780
         

Solid Waste Revenue – 1.5%

     

Salinas Valley, CA, Solid Waste Authority Rev., AMBAC, 5.125%, 2022

   $ 500,000    $ 412,575
         

State & Local Agencies – 27.4%

     

Calabasas, CA, Certificate Participants (City Hall & Civic Center Project), AMBAC, 4.5%, 2041

   $ 725,000    $ 577,811

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., SBHAC, 5%, 2038

     1,000,000      962,760

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, “A”, FGIC, 5%, 2035

     1,000,000      784,900

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, “A”, FGIC, 5%, 2038

     1,000,000      775,840

Huntington Park, CA, Public Financing Authority Rev., “A”, FSA, 5.25%, 2019

     1,000,000      1,100,100

Los Angeles County, CA, Schools Regionalized Business Service Corp., Capital Appreciation Pooled Financing, “A”, AMBAC, 0%, 2018

     2,020,000      1,315,602

Los Angeles County, CA, Schools Regionalized Business Service Corp., Capital Appreciation Pooled Financing, “A”, AMBAC, 0%, 2023

     2,220,000      990,564

Western Placer, CA, Unified School, “B”, ASSD GTY, 5.125%, 2047

     1,200,000      1,052,676
         
      $ 7,560,253
         

Tax - Other – 2.0%

     

Southern California Logistics Airport Authority (Southern California Authority Project), XLCA, 5%, 2043

   $ 820,000    $ 551,253
         

Tax Assessment – 16.9%

     

Compton, CA, Public Finance Authority, AMBAC, 5%, 2032

   $ 500,000    $ 458,015

Fontana, CA, Public Finance Authority, Tax Allocation Rev. (Sub Lien North Fontana Redevelopment), “A”, AMBAC, 5%, 2029

     1,000,000      824,300

Huntington Beach, CA, Community Facilities District, Special Tax (Grand Coast Resort), “2000-1”, 6.45%, 2031

     100,000      81,268

Lancaster, CA, Financing Authority, Tax Allocation Rev. (Projects No. 5 & 6 Redevelopment Projects), MBIA, 5.25%, 2020

     1,075,000      1,181,823

Long Beach, CA, Bond Finance Authority, Tax Allocation Rev., “C”, AMBAC, 5.5%, 2031

     750,000      737,333

San Dieguito, CA, Public Facilities Authority, “A”, AMBAC, 5%, 2032

     500,000      454,505

San Jose, CA, Redevelopment Agency, Tax Allocation (Merged Area Redevelopment Project), “C”, MBIA, 4.25%, 2030

     900,000      636,831

Yuba, CA, Levee Financing Authority Rev. (Levee Financing Project), “A”, ASSD GTY, 5%, 2038

     330,000      297,198
         
      $ 4,671,273
         

Tobacco – 5.2%

     

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A-1”, 5.75%, 2047

   $ 1,500,000    $ 895,875

 

2


MFS California Insured Municipal Fund

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/09 - continued

 

Issuer

   Shares/Par    Value ($)  

Municipal Bonds – continued

     

Tobacco – continued

     

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Asset Backed, “A-1”, 5.125%, 2047

   $ 1,000,000    $ 535,450  
           
      $ 1,431,325  
           

Transportation - Special Tax – 4.4%

     

Puerto Rico Highway & Transportation Authority, Highway Rev., “Y”, FSA, 5.5%, 2016 (c)

   $ 450,000    $ 540,833  

San Francisco, CA, Bay Area Rapid Transit District, Sales Tax Rev., “A”, MBIA, 5%, 2030 (f)

     685,000      683,171  
           
      $ 1,224,004  
           

Universities - Colleges – 8.3%

     

California Educational Facilities Authority Rev., “B”, 6.625%, 2010 (c)

   $ 45,000    $ 48,548  

California University Rev., “C”, MBIA, 5%, 2029

     1,500,000      1,462,185  

Hastings College of the Law, CA, ASSD GTY, 4.75%, 2037

     195,000      170,206  

University Enterprises, Inc. (Auxiliary Organization), “A”, FGIC, 4.375%, 2030

     500,000      386,765  

University of California, “J”, FSA, 4.5%, 2035

     250,000      216,703  
           
      $ 2,284,407  
           

Utilities - Investor Owned – 8.0%

     

California Pollution Control Financing Authority, Pollution Control Rev. (Pacific Gas & Electric Co.), MBIA, 5.35%, 2016

   $ 1,000,000    $ 964,310  

California Pollution Control Financing Authority, Pollution Control Rev. (Southern California Edison Co.), “B”, MBIA, 5.45%, 2029

     1,500,000      1,256,295  
           
      $ 2,220,605  
           

Utilities - Municipal Owned – 1.6%

     

Los Angeles, CA, Department of Water & Power Rev., “A-1”, FSA, 4.625%, 2037

   $ 500,000    $ 454,840  
           

Utilities - Other – 1.3%

     

Southern California Public Power Authority (Natural Gas Project No. 1), “A”, 5%, 2033

   $ 585,000    $ 359,927  
           

Water & Sewer Utility Revenue – 23.3%

     

Azusa, CA, Public Financing Authority Rev. (Water Systems Project), FSA, 5%, 2021

   $ 565,000    $ 591,775  

Culver City, CA, Wastewater Facilities Rev., “A”, FGIC, 5.7%, 2029

     1,500,000      1,508,625  

Hollister CA, Joint Powers Financing Authority Wastewater Rev. (Refining & Improvement Project), “1”, FSA, 5%, 2032

     770,000      683,953  

Los Angeles, CA, Department of Water & Power Waterworks Rev., “C”, MBIA, 5%, 2029

     500,000      501,125  

Los Angeles, CA, Department of Water & Power, Waterworks Rev., “C”, MBIA, 5%, 2022

     1,000,000      1,040,180  

Pico Rivera, CA, Water Authority Rev. (Water Systems Project), “A”, MBIA, 5.5%, 2029

     2,000,000      2,109,560  
           
      $ 6,435,218  
           

Total Municipal Bonds

      $ 48,161,918  
           

Money Market Funds (v) – 6.7%

     

MFS Institutional Money Market Portfolio, 0.44%, at Net Asset Value

     1,859,513    $ 1,859,513  
           

Floating Rate Demand Notes – 5.2%

     

Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 0.1%, due 3/02/09

   $ 400,000    $ 400,000  

Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), “C”, 0.22%, due 3/02/09

     1,035,000      1,035,000  
           

Total Floating Rate Demand Notes

      $ 1,435,000  
           

Total Investments

      $ 51,456,431  
           

Other Assets, Less Liabilities 2.3%

        626,990  
           

Preferred shares (issued by the trust) – (88.5)%

        (24,450,000 )
           

Net Assets applicable to common shares – 100.0%

      $ 27,633,421  
           

 

3


MFS California Insured Municipal Fund

PORTFOLIO OF INVESTMENTS (Unaudited) 2/28/09 - continued

 

(a) Mandatory tender date is earlier than stated maturity date.

 

(c) Refunded bond.

 

(f) All or a portion of the security has been segregated as collateral for open futures contracts.

 

(v) Underlying fund that is available only to investment companies managed by MFS. The rate quoted is the annualized seven-day yield of the fund at period end.

The following abbreviations are used in this report and are defined:

 

COP    Certificate of Participation

Insurers

    
AMBAC    AMBAC Indemnity Corp.
ASSD GTY    Assured Guaranty Insurance Co.
BHAC    Berkshire Hathaway Assurance Corp.
FGIC    Financial Guaranty Insurance Co.
FSA    Financial Security Assurance Inc.
GNMA    Government National Mortgage Assn.
MBIA    MBIA Insurance Corp.
SBHAC    Secondary Berkshire Hathaway Assurance Corp.
XLCA    XL Capital Insurance Co.

See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.

 

4


MFS California Insured Municipal Fund

Supplemental Information (Unaudited) 2/28/09

(1) Fair Value Disclosure

The fund adopted FASB Statement No. 157, Fair Value Measurements (the “Statement”). This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements.

Various inputs are used in determining the value of the fund’s assets or liabilities carried at market value. These inputs are categorized into three broad levels. Level 1 includes quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes unobservable inputs, which may include the adviser’s own assumptions in determining the fair value of investments. Other financial instruments are derivative instruments not reflected in total investments, such as futures, forwards, swap contracts, and written options. The following is a summary of the levels used as of February 28, 2009 in valuing the fund’s assets or liabilities carried at market value:

 

     Level 1    Level 2    Level 3    Total

Investments in Securities

   $ 1,859,513    $ 49,596,918    $ —      $ 51,456,431

Other Financial Instruments

   $ 125,070    $ —      $ —      $ 125,070

(2) Portfolio Securities

The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows:

 

Aggregate Cost

   $ 54,866,163  
        

Gross unrealized appreciation

   $ 1,342,545  

Gross unrealized depreciation

     (4,752,277 )
        

Net unrealized appreciation (depreciation)

   $ (3,409,732 )
        

The aggregate cost above includes prior fiscal year end tax adjustments.

(3) Derivative Contracts at 2/28/09

Futures contracts outstanding at 2/28/09

 

Description

   Contracts    Value    Expiration
Date
   Unrealized
Appreciation
(Depreciation)

U.S. Treasury Bond 30 yr (Short)

   18    $ 2,220,188    Jun-09    $ 60,546

U.S. Treasury Note 10 yr (Short)

   49      5,881,531    Jun-09      64,524
               
            $ 125,070
               

At February 28, 2009, the fund had sufficient cash and/or other liquid securities to cover any commitments under these derivative contracts.

 

5


MFS California Insured Municipal Fund

Supplemental Information (Unaudited) 2/28/09 - continued

(4) Transactions in Underlying Funds-Affiliated Issuers

An affiliated issuer may be considered one in which the fund owns 5% or more of the outstanding voting securities, or a company which is under common control. For the purposes of this report, the fund assumes the following to be affiliated issuers:

 

Underlying Funds

   Beginning
Shares/Par
Amount
   Acquisitions
Shares/Par
Amount
   Dispositions
Shares/Par
Amount
    Ending
Shares/Par
Amount

MFS Institutional Money Market Portfolio

     —        2,301,544      (442,031 )     1,859,513

Underlying Funds

   Realized
Gain
(Loss)
   Capital Gain
Distributions
   Dividend
Income
    Ending
Value

MFS Institutional Money Market Portfolio

   $ —      $ —      $ 461     $ 1,859,513

 

6


ITEM 2. CONTROLS AND PROCEDURES.

 

(a) Based upon their evaluation of the effectiveness of the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940 (the “Act”)) as conducted within 90 days of the filing date of this Form N-Q, the registrant’s principal financial officer and principal executive officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms.

 

(b) There were no changes in the registrant’s internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

 

ITEM 3. EXHIBITS.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2): Attached hereto.


Notice

A copy of the Agreement and Declaration of Trust, as amended, of the Registrant is on file with the Secretary of State of The Commonwealth of Massachusetts and notice is hereby given that this instrument is executed on behalf of the Registrant by an officer of the Registrant as an officer and not individually and the obligations of or arising out of this instrument are not binding upon any of the Trustees or shareholders individually, but are binding only upon the assets and property of the respective constituent series of the Registrant.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Registrant: MFS CALIFORNIA INSURED MUNICIPAL FUND

 

By (Signature and Title)*    MARIA F. DWYER
  Maria F. Dwyer, President

Date: April 20, 2009

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

 

By (Signature and Title)*    MARIA F. DWYER
  Maria F. Dwyer, President (Principal Executive Officer)

Date: April 20, 2009

 

By (Signature and Title)*    JOHN M. CORCORAN
  John M. Corcoran, Treasurer (Principal Financial Officer and Accounting Officer)

Date: April 20, 2009

 

* Print name and title of each signing officer under his or her signature.