| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| May 15, 2008 | 6.67 | 6.78 | 6.58 | 6.78 | 873.21M |
| May 14, 2008 | 6.83 | 6.87 | 6.63 | 6.65 | 916.82M |
| May 13, 2008 | 6.74 | 6.84 | 6.71 | 6.78 | 823.24M |
| May 12, 2008 | 6.61 | 6.75 |
| 6.53 |
| 6.72 |
| 818.56M |
| May 9, 2008 | 6.54 | 6.58 | 6.48 | 6.55 | 673.07M |
| May 8, 2008 | 6.56 | 6.66 | 6.54 | 6.61 | 899.09M |
| May 7, 2008 | 6.64 | 6.72 | 6.45 | 6.52 | 1.16B |
| May 6, 2008 | 6.59 | 6.68 | 6.51 | 6.67 | 918.87M |
| May 5, 2008 | 6.50 | 6.62 | 6.47 | 6.60 | 854.56M |
| May 2, 2008 | 6.44 | 6.50 | 6.38 | 6.46 | 1.01B |
| May 1, 2008 | 6.25 | 6.43 | 6.24 | 6.43 | 903.58M |
| Apr 30, 2008 | 6.29 | 6.43 | 6.18 | 6.21 | 1.14B |
| Apr 29, 2008 | 6.11 | 6.27 | 6.08 | 6.25 | 923.48M |
| Apr 28, 2008 | 6.06 | 6.21 | 6.04 | 6.15 | 787.21M |
| Apr 25, 2008 | 6.10 | 6.11 | 5.94 | 6.06 | 992.47M |
| Apr 24, 2008 | 5.91 | 6.07 | 5.69 | 6.03 | 1.7B |
| Apr 23, 2008 | 5.86 | 5.89 | 5.75 | 5.82 | 1.5B |
| Apr 22, 2008 | 5.98 | 6.00 | 5.65 | 5.72 | 1.44B |
| Apr 21, 2008 | 5.79 | 6.02 | 5.78 | 6.01 | 1.04B |
| Apr 18, 2008 | 5.68 | 5.80 | 5.66 | 5.75 | 1.03B |
| Apr 17, 2008 | 5.51 | 5.57 | 5.48 | 5.52 | 704.27M |
| Apr 16, 2008 | 5.42 | 5.50 | 5.38 | 5.49 | 795.77M |
| Apr 15, 2008 | 5.34 | 5.35 | 5.20 | 5.30 | 698.04M |
| Apr 14, 2008 | 5.24 | 5.33 | 5.16 | 5.28 | 845.09M |
| Apr 11, 2008 | 5.45 | 5.47 | 5.23 | 5.26 | 1.21B |
| Apr 10, 2008 | 5.40 | 5.55 | 5.38 | 5.52 | 955.76M |
| Apr 9, 2008 | 5.48 | 5.50 | 5.37 | 5.41 | 873.4M |
| Apr 8, 2008 | 5.48 | 5.59 | 5.44 | 5.46 | 1.01B |
| Apr 7, 2008 | 5.58 | 5.70 | 5.54 | 5.57 | 1.16B |
| Apr 4, 2008 | 5.44 | 5.53 | 5.38 | 5.47 | 854.42M |