| Contract | Open | High | Low | Close | Change | Volume |
| Mar '12(CHCH) | 3.9025 | 3.9525 | 3.8000 | 3.8705 | -.0415 | 6,171 |
| Apr '12(CHCJ) | 3.9145 | 3.9565 | 3.8190 | 3.8770 | -.0420 | 292 |
| May'12(CHCK) | 3.9175 | 3.9615 | 3.8050 | 3.8795 | -.0420 | 57,555 |
| June '12(CHCM) | 3.9090 | 3.9530 | 3.8590 | 3.8850 | -.0415 | 190 |
| July '12(CHCN) | 3.9285 | 3.9670 | 3.8280 | 3.8890 | -.0410 | 1,904 |
| Aug'12(CHCN) | 3.9480 | 3.9480 | 3.8980 | 3.8950 | -.0405 | 2 |
| Sep'12(CHCN) | 3.9465 | 3.9465 | 3.8950 | 3.8985 | -.0400 | 953 |
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