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):

                                 June 1, 2005

                       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.)

      375 North Front Street, Suite 300, 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 May 31, 2005, preliminary assets under management totaled
$738.0 million.  Following is a summary of assets under management as of
May 31, 2005 (in millions):

				Equity	Fixed Income	   Total
Individually Managed Accounts	$181.1	      $128.3      $309.4
Mutual Funds			 287.4	        71.7       359.1
Private Investment Partnership    69.5	         0.0        69.5
                                ------        ------      ------
Total				 538.0	       200.0       738.0


                                    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: June 1, 2005  	                     By: /s/ James F. Laird
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                                            James F. Laird, Chief Financial
                                             Officer and Secretary