| Date | Open | Close | Volume |
| 2010-03-02 | 1.00 | 1.19 | 37300 |
| 2010-03-01 | 1.02 | 1.00 | 28100 |
| 2010-02-26 | 0.97 | 1.03 | 1400 |
| 2010-02-25 | 0.97 | 1.00 | 10200 |
| 2010-02-24 | 1.00 | 1.00 | 5300 |
| 2010-02-23 | 0.98 | 0.98 | 3400 |
| 2010-02-22 | 0.96 | 1.00 | 11200 |
| 2010-02-19 | 1.01 | 0.96 | 16400 |
| 2010-02-18 | 1.04 | 1.04 | 11100 |
| 2010-02-17 | 1.03 | 1.04 | 32100 |
| 2010-02-16 | 0.91 | 0.99 | 96400 |
| 2010-02-12 | 1.04 | 1.03 | 79900 |
| 2010-02-11 | 1.14 | 1.06 | 104400 |
| 2010-02-10 | 1.10 | 1.14 | 258800 |
| 2010-02-09 | 1.23 | 1.15 | 8500 |
| 2010-02-08 | 1.17 | 1.20 | 6800 |
| 2010-02-05 | 1.15 | 1.14 | 6400 |
| 2010-02-04 | 1.20 | 1.15 | 4800 |
| 2010-02-03 | 1.16 | 1.21 | 6800 |
| 2010-02-02 | 1.17 | 1.16 | 6300 |
| 2010-02-01 | 1.13 | 1.18 | 33900 |
| 2010-01-29 | 1.11 | 1.16 | 9700 |
| 2010-01-28 | 1.20 | 1.11 | 40200 |
| 2010-01-27 | 1.24 | 1.20 | 8900 |
| 2010-01-26 | 1.22 | 1.25 | 13000 |
| 2010-01-25 | 1.25 | 1.21 | 5800 |
| 2010-01-22 | 1.26 | 1.21 | 8000 |
| 2010-01-21 | 1.31 | 1.27 | 1500 |
| 2010-01-20 | 1.26 | 1.33 | 1800 |
| 2010-01-19 | 1.21 | 1.28 | 42200 |
| 2010-01-15 | 1.28 | 1.28 | 185500 |
| 2010-01-14 | 1.20 | 1.20 | 11000 |
Other Companies: 06-06-2009 | POZEN, Inc. | 04-21-2007-1
Cerner Corp. | 12-08-2007 | Wabash National Corp.