| Date | Open | Close | Volume |
| 2010-03-02 | 19.99 | 19.38 | 1575200 |
| 2010-03-01 | 20.01 | 19.83 | 2564200 |
| 2010-02-26 | 19.90 | 19.83 | 1186600 |
| 2010-02-25 | 19.99 | 19.92 | 1239600 |
| 2010-02-24 | 19.84 | 20.32 | 1615500 |
| 2010-02-23 | 19.27 | 19.64 | 2156700 |
| 2010-02-22 | 19.92 | 19.35 | 1204900 |
| 2010-02-19 | 19.56 | 19.81 | 1104400 |
| 2010-02-18 | 20.00 | 19.65 | 1503900 |
| 2010-02-17 | 19.13 | 20.11 | 2807800 |
| 2010-02-16 | 18.57 | 18.81 | 1445900 |
| 2010-02-12 | 18.03 | 18.24 | 1010100 |
| 2010-02-11 | 17.28 | 18.24 | 1087700 |
| 2010-02-10 | 17.15 | 17.26 | 600800 |
| 2010-02-09 | 17.25 | 17.25 | 1011800 |
| 2010-02-08 | 17.44 | 17.11 | 663900 |
| 2010-02-05 | 17.55 | 17.45 | 2231900 |
| 2010-02-04 | 18.80 | 17.57 | 1492300 |
| 2010-02-03 | 18.56 | 18.87 | 1124600 |
| 2010-02-02 | 19.00 | 18.73 | 1169700 |
| 2010-02-01 | 18.31 | 18.92 | 1357700 |
| 2010-01-29 | 19.14 | 18.22 | 1657400 |
| 2010-01-28 | 19.29 | 19.03 | 1314800 |
| 2010-01-27 | 19.76 | 19.29 | 1958100 |
| 2010-01-26 | 20.46 | 19.71 | 1049100 |
| 2010-01-25 | 21.17 | 20.47 | 914500 |
| 2010-01-22 | 22.21 | 20.37 | 1733200 |
| 2010-01-21 | 22.78 | 22.31 | 1312800 |
| 2010-01-20 | 22.43 | 22.69 | 1305200 |
| 2010-01-19 | 22.10 | 22.44 | 704600 |
| 2010-01-15 | 22.62 | 22.12 | 1284000 |
| 2010-01-14 | 22.77 | 22.44 | 861600 |
Other Companies: 10-29-2008-1 | Chromcraft Revington, Inc. | 02-23-2007-1
Autodesk, Inc. | 03-10-2009 | Nuveen Select Tax-Free Income Portfolio