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):

                               February 4, 2013

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

                 (State or Other Jurisdiction of Incorporation)

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

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

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

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

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange
    Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange
    Act (17 CFR 240.13e-4(c))

Item 8.01.    Other Events
----------   --------------------------------------------

     The following is a summary of assets under management as of January 31,
2013 of Diamond Hill Capital Management, Inc., a wholly owned subsidiary of
Diamond Hill Investment Group, Inc. (in millions):

        By Investment Vehicle

Proprietary funds               $  5,652
Sub-advised funds                  1,009
Separate accounts                  3,473
Total                           $ 10,134

        By Investment Strategy

Small Cap                       $  1,001
Small-Mid Cap                        412
Large Cap                          5,600
Select (All Cap)                     277
Long-Short                         2,644
Strategic Income                     200
Total                           $ 10,134


     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: February 4, 2013	                    By: /s/ James F. Laird
                                            James F. Laird, Chief Financial
                                            Officer and Secretar