| Date | Open | Close | Volume |
| 2010-03-03 | 29.35 | 30.05 | 1264500 |
| 2010-03-02 | 29.01 | 28.99 | 1060300 |
| 2010-03-01 | 28.43 | 28.88 | 1288100 |
| 2010-02-26 | 28.42 | 28.00 | 623600 |
| 2010-02-25 | 27.75 | 28.26 | 804500 |
| 2010-02-24 | 27.83 | 28.35 | 863300 |
| 2010-02-23 | 29.07 | 27.82 | 2115200 |
| 2010-02-22 | 31.59 | 29.30 | 2549600 |
| 2010-02-19 | 32.04 | 31.49 | 870700 |
| 2010-02-18 | 31.64 | 32.11 | 576900 |
| 2010-02-17 | 32.20 | 31.77 | 513300 |
| 2010-02-16 | 32.05 | 31.92 | 514300 |
| 2010-02-12 | 32.10 | 31.88 | 758300 |
| 2010-02-11 | 31.33 | 32.43 | 1079900 |
| 2010-02-10 | 31.25 | 31.70 | 1439500 |
| 2010-02-09 | 31.20 | 31.14 | 1185000 |
| 2010-02-08 | 31.68 | 30.88 | 1407200 |
| 2010-02-05 | 31.88 | 31.82 | 1750700 |
| 2010-02-04 | 33.27 | 32.09 | 2119700 |
| 2010-02-03 | 35.69 | 33.83 | 4330400 |
| 2010-02-02 | 38.43 | 35.69 | 4243500 |
| 2010-02-01 | 38.40 | 39.75 | 1349500 |
| 2010-01-29 | 38.51 | 38.02 | 810600 |
| 2010-01-28 | 39.49 | 38.20 | 854600 |
| 2010-01-27 | 38.91 | 39.22 | 887400 |
| 2010-01-26 | 37.13 | 39.03 | 1342600 |
| 2010-01-25 | 37.01 | 37.17 | 800700 |
| 2010-01-22 | 37.92 | 36.54 | 986400 |
| 2010-01-21 | 39.62 | 38.04 | 1630200 |
| 2010-01-20 | 40.54 | 39.75 | 631900 |
| 2010-01-19 | 40.15 | 41.00 | 714000 |
| 2010-01-15 | 41.78 | 40.42 | 1454000 |
Other Companies: 11-10-2007-1 | Gammon Gold, Inc. | 03-30-2007
Nucryst Pharmaceuticals Corporation | 05-01-2009-1 | First Chester County Corp.