| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Jan 29, 2008 | 4.68 | 4.74 | 4.61 | 4.70 | 1.1B |
| Jan 28, 2008 | 4.58 | 4.76 | 4.52 | 4.64 | 1.47B |
| Jan 25, 2008 | 4.96 | 4.97 | 4.63 | 4.64 | 1.55B |
| Jan 24, 2008 | 5.00 | 5.03 | 4.71 |
| 4.84 |
| 2.01B |
| Jan 23, 2008 | 4.86 | 5.00 | 4.51 | 4.97 | 3.37B |
| Jan 22, 2008 | 5.29 | 5.71 | 5.21 | 5.56 | 2.43B |
| Jan 18, 2008 | 5.78 | 5.92 | 5.70 | 5.76 | 1.72B |
| Jan 17, 2008 | 5.77 | 5.91 | 5.66 | 5.75 | 1.76B |
| Jan 16, 2008 | 5.90 | 6.04 | 5.60 | 5.70 | 2.21B |
| Jan 15, 2008 | 6.35 | 6.40 | 5.88 | 6.04 | 2.34B |
| Jan 14, 2008 | 6.34 | 6.41 | 6.26 | 6.39 | 1.1B |
| Jan 11, 2008 | 6.29 | 6.35 | 6.07 | 6.17 | 1.23B |
| Jan 10, 2008 | 6.34 | 6.46 | 6.26 | 6.36 | 1.48B |
| Jan 9, 2008 | 6.12 | 6.41 | 6.01 | 6.41 | 1.81B |
| Jan 8, 2008 | 6.43 | 6.52 | 6.10 | 6.12 | 1.52B |
| Jan 7, 2008 | 6.47 | 6.56 | 6.08 | 6.34 | 2.07B |
| Jan 4, 2008 | 6.84 | 6.89 | 6.39 | 6.43 | 1.46B |
| Jan 3, 2008 | 6.98 | 7.05 | 6.88 | 6.96 | 842.07M |
| Jan 2, 2008 | 7.12 | 7.15 | 6.88 | 6.96 | 1.08B |
| Dec 31, 2007 | 7.13 | 7.16 | 7.06 | 7.07 | 539.33M |
| Dec 28, 2007 | 7.16 | 7.20 | 7.03 | 7.14 | 699.65M |
| Dec 27, 2007 | 7.11 | 7.25 | 7.06 | 7.09 | 795.53M |
| Dec 26, 2007 | 7.11 | 7.18 | 7.03 | 7.11 | 703.73M |
| Dec 24, 2007 | 6.97 | 7.12 | 6.96 | 7.10 | 480.2M |
| Dec 21, 2007 | 6.79 | 6.93 | 6.78 | 6.93 | 993.96M |
| Dec 20, 2007 | 6.62 | 6.71 | 6.55 | 6.69 | 774.06M |
| Dec 19, 2007 | 6.53 | 6.59 | 6.46 | 6.54 | 827.48M |
| Dec 18, 2007 | 6.66 | 6.69 | 6.38 | 6.53 | 1.22B |
| Dec 17, 2007 | 6.81 | 6.88 | 6.53 | 6.59 | 1.02B |
| Dec 14, 2007 | 6.80 | 6.90 | 6.77 | 6.80 | 674.31M |