| Date | Open | Close | Volume |
| 2010-03-02 | 27.50 | 27.91 | 308300 |
| 2010-03-01 | 26.64 | 27.49 | 318700 |
| 2010-02-26 | 26.74 | 26.42 | 202600 |
| 2010-02-25 | 26.46 | 26.65 | 117800 |
| 2010-02-24 | 26.51 | 26.82 | 237100 |
| 2010-02-23 | 26.77 | 26.36 | 162600 |
| 2010-02-22 | 26.74 | 26.80 | 157200 |
| 2010-02-19 | 26.07 | 26.54 | 262100 |
| 2010-02-18 | 26.03 | 26.07 | 286600 |
| 2010-02-17 | 26.06 | 26.02 | 265400 |
| 2010-02-16 | 25.75 | 25.89 | 316200 |
| 2010-02-12 | 25.24 | 25.58 | 168100 |
| 2010-02-11 | 25.24 | 25.43 | 162800 |
| 2010-02-10 | 25.11 | 25.22 | 160800 |
| 2010-02-09 | 25.18 | 25.22 | 311000 |
| 2010-02-08 | 25.57 | 24.98 | 320000 |
| 2010-02-05 | 25.91 | 25.59 | 313200 |
| 2010-02-04 | 26.28 | 25.99 | 290800 |
| 2010-02-03 | 26.44 | 26.46 | 149900 |
| 2010-02-02 | 26.49 | 26.51 | 207700 |
| 2010-02-01 | 26.06 | 26.38 | 223200 |
| 2010-01-29 | 26.57 | 25.95 | 378800 |
| 2010-01-28 | 27.20 | 26.56 | 181100 |
| 2010-01-27 | 26.89 | 27.09 | 296400 |
| 2010-01-26 | 27.03 | 27.02 | 249900 |
| 2010-01-25 | 27.43 | 26.98 | 172600 |
| 2010-01-22 | 27.30 | 27.20 | 249100 |
| 2010-01-21 | 27.56 | 27.44 | 305300 |
| 2010-01-20 | 27.13 | 27.45 | 368900 |
| 2010-01-19 | 27.03 | 27.30 | 294400 |
| 2010-01-15 | 27.47 | 26.94 | 303300 |
| 2010-01-14 | 27.58 | 27.40 | 154500 |
Other Companies: 02-10-2007 | Charles Schwab Corp. | 06-13-2009
VASCO Data Security International Inc. | 02-25-2007-1 | Briggs & Stratton Corp.