| Date | Open | Close | Volume |
| 2010-03-02 | 8.86 | 9.99 | 11027300 |
| 2010-03-01 | 8.84 | 8.73 | 1663800 |
| 2010-02-26 | 8.59 | 8.82 | 1801300 |
| 2010-02-25 | 8.65 | 8.55 | 2123100 |
| 2010-02-24 | 8.98 | 8.85 | 1344800 |
| 2010-02-23 | 9.53 | 9.01 | 2176400 |
| 2010-02-22 | 9.41 | 9.54 | 2942200 |
| 2010-02-19 | 9.21 | 9.15 | 1346200 |
| 2010-02-18 | 9.18 | 9.36 | 3384600 |
| 2010-02-17 | 9.48 | 9.30 | 4291200 |
| 2010-02-16 | 9.00 | 9.57 | 4395400 |
| 2010-02-12 | 8.67 | 8.80 | 1388000 |
| 2010-02-11 | 8.59 | 8.96 | 3603300 |
| 2010-02-10 | 8.61 | 8.60 | 1113000 |
| 2010-02-09 | 9.00 | 8.60 | 1788000 |
| 2010-02-08 | 9.11 | 8.65 | 1319600 |
| 2010-02-05 | 9.29 | 9.19 | 2892700 |
| 2010-02-04 | 10.24 | 9.39 | 2243000 |
| 2010-02-03 | 10.57 | 10.25 | 2483900 |
| 2010-02-02 | 10.99 | 11.04 | 1806800 |
| 2010-02-01 | 10.94 | 10.90 | 1697100 |
| 2010-01-29 | 11.19 | 10.60 | 2729300 |
| 2010-01-28 | 10.64 | 11.08 | 4591400 |
| 2010-01-27 | 10.25 | 10.52 | 1829200 |
| 2010-01-26 | 10.70 | 10.25 | 1808600 |
| 2010-01-25 | 11.23 | 10.75 | 1419300 |
| 2010-01-22 | 11.34 | 10.82 | 3496400 |
| 2010-01-21 | 12.38 | 11.18 | 3235000 |
| 2010-01-20 | 12.39 | 12.20 | 2077700 |
| 2010-01-19 | 12.34 | 12.77 | 6133600 |
| 2010-01-15 | 12.92 | 12.51 | 3174200 |
| 2010-01-14 | 12.81 | 12.95 | 11723000 |
Other Companies: 07-19-2007 | DR Horton Inc. | 03-19-2008-1
BlackRock Global Opportunities Equity Trust | 03-27-2007 | Stereotaxis Inc.