| Contract | Open | High | Low | Close | Change | Volume |
| Feb '12(CHCG) | 3.8780 | 3.8795 | 3.8335 | 3.8590 | -.0380 | 152 |
| Mar '12(CHCH) | 3.9015 | 3.9020 | 3.8280 | 3.8645 | -.0370 | 38,382 |
| Apr '12(CHCJ) | 3.8800 | 3.8800 | 3.8585 | 3.8715 | -.0370 | 17 |
| May'12(CHCK) | 3.9115 | 3.9115 | 3.8390 | 3.8750 | -.0365 | 4,200 |
| June '12(CHCM) | 3.8970 | 3.8970 | 3.8500 | 3.8825 | -.0355 | 76 |
| July '12(CHCN) | 3.9080 | 3.9080 | 3.8480 | 3.8850 | -.0365 | 2,306 |
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