| Date | Event |
| 1-Dec-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 25-Nov-09 | Price hit new 52-week high ($71.95) |
| 6-Nov-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 6-Nov-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 10-Q, Quarterly Report |
| 6-Nov-09 | Earnings announcement |
| 4-Nov-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 3-Nov-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 2-Oct-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 2-Sep-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 7-Aug-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 7-Aug-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 10-Q, Quarterly Report |
| 4-Aug-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 2-Jul-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 2-Jun-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 8-May-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 8-May-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 10-Q, Quarterly Report |
| 4-May-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 2-Apr-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 13-Mar-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 10-K, Annual Report |
| 11-Mar-09 | Price hit new 52-week low ($28.51) |
| 5-Mar-09 | Price hit new 52-week low ($30.11) |
| 3-Mar-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 3-Mar-09 | Price hit new 52-week low ($30.78) |
| 27-Feb-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 3-Feb-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 6-Jan-09 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 3-Dec-08 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |
| 7-Nov-08 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Results of Operations and Financial Condition |
| 7-Nov-08 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 10-Q, Quarterly Report |
| 4-Nov-08 | DIAMOND HILL INVESTMENT GROUP INC Files SEC form 8-K, Other Events |