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 10, 2008

                       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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Diamond Hill Funds has made the decision to close the Diamond Hill Long-Short
fund to new investors effective June 30, 2008 as described in Prospectus
supplement dated June 10, 2008, a copy of which is filed herewith as Exhibit
99.1 and incorporated herein by reference.

Item 9.01.     Financial Statements and Exhibits
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Exhibit No.   Document
-----------   --------

99.1          Prospectus supplement issued by Diamond Hill Funds dated June 10,
	      2008.



                                    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 10, 2008                         By: /s/ James F. Laird
                                            -------------------------------
                                            James F. Laird, Chief Financial
                                             Officer and Secretary