UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                             _______________________

                                    FORM 8-K

                                 CURRENT REPORT
                             _______________________

                     PURSUANT TO SECTION 13 OR 15(D) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                Date of Report (Date of earliest event reported):

                               August 2, 2010

                       Diamond Hill Investment Group, Inc.
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             (Exact Name of Registrant as Specified in its Charter)

                                      Ohio
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                 (State or Other Jurisdiction of Incorporation)

             000-24498                              65-0190407
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      (Commission File Number)         (I.R.S. Employer Identification No.)

      325 John H. McConnell Blvd, Suite 200, Columbus, Ohio         43215
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      (Address of Principal Executive Offices)                    (Zip Code)

Registrant's Telephone Number, Including Area Code:   (614) 255-3333

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          (Former Name or Former Address, if Changed Since Last Report)



Item 8.01.    Other Events
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          As of July 31, 2010, preliminary assets under management totaled
$6.888 billion.  Following is a summary as of July 31, 2010 (in millions):


Separate Accounts	 	$  2,688
Mutual Funds 			   3,996
Private Investment Funds	     204
                                --------
Total			       	$  6,888

Investment Strategy
-------------------
Small Cap			$    792
Small-Mid Cap         	             158
Large Cap 			   3,099
Select                               400
Long-Short		           2,264
Strategic and Fixed Income     	     175
				--------
Total			        $  6,888


                                    SIGNATURE
                                    ---------

     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 hereunto duly authorized.

                                        DIAMOND HILL INVESTMENT GROUP, INC.


Date: August 2, 2010	                    By: /s/ James F. Laird
                                            -------------------------------
                                            James F. Laird, Chief Financial
                                            Officer and Secretary