| Date | Open | Close | Volume |
| 2010-03-02 | 5.30 | 5.35 | 16800 |
| 2010-03-01 | 5.21 | 5.30 | 27600 |
| 2010-02-26 | 5.20 | 5.17 | 23200 |
| 2010-02-25 | 5.13 | 5.16 | 16700 |
| 2010-02-24 | 5.20 | 5.24 | 21300 |
| 2010-02-23 | 5.17 | 5.21 | 27900 |
| 2010-02-22 | 5.13 | 5.17 | 6000 |
| 2010-02-19 | 5.02 | 5.12 | 30700 |
| 2010-02-18 | 5.09 | 5.05 | 21200 |
| 2010-02-17 | 5.03 | 5.11 | 23100 |
| 2010-02-16 | 5.11 | 5.00 | 15000 |
| 2010-02-12 | 4.95 | 5.05 | 34900 |
| 2010-02-11 | 4.98 | 5.00 | 24200 |
| 2010-02-10 | 4.93 | 4.95 | 10500 |
| 2010-02-09 | 4.97 | 4.94 | 12800 |
| 2010-02-08 | 4.96 | 4.88 | 15400 |
| 2010-02-05 | 4.83 | 4.96 | 10800 |
| 2010-02-04 | 4.92 | 4.80 | 33100 |
| 2010-02-03 | 4.99 | 4.98 | 56600 |
| 2010-02-02 | 5.00 | 4.99 | 35800 |
| 2010-02-01 | 5.13 | 5.00 | 46800 |
| 2010-01-29 | 5.03 | 5.10 | 61000 |
| 2010-01-28 | 5.20 | 4.98 | 36000 |
| 2010-01-27 | 5.08 | 5.18 | 37000 |
| 2010-01-26 | 5.01 | 5.11 | 29900 |
| 2010-01-25 | 5.07 | 5.03 | 49000 |
| 2010-01-22 | 4.96 | 5.00 | 30400 |
| 2010-01-21 | 5.10 | 4.95 | 33500 |
| 2010-01-20 | 5.11 | 5.08 | 23700 |
| 2010-01-19 | 5.07 | 5.09 | 7100 |
| 2010-01-15 | 5.07 | 5.07 | 36300 |
| 2010-01-14 | 4.96 | 5.05 | 38200 |
Other Companies: 05-20-2008 | DIAMONDS Trust, Series 1 | 08-05-2008
MedQuist Inc. | 11-02-2007 | Piedmont Natural Gas Co. Inc.