IMPORTANT: Product Modification Summary for Clearing Firms, Bookkeeping Software Providers, ISVs - Effective March 22nd and March 29th, 2011

Effective with the termination of the April Natural Gas Futures contract month on trade date March 29, 2011 for KD, and effective with the termination of the April Crude Oil Futures contract month on trade date March 22, 2011 for CD, the underlying futures contract month on which the daily option contracts settle will be as follows:

·      On the termination day of the first nearby underlying futures contract month, the option shall settle against the second (and not the first, as is currently the case) nearby underlying futures contract month. The CD 20110322 contract will have the CL 201105 future as the underlying contract. The KD 20110329 will have the NG 201105 future as the underlying contract.

·         With the exception of the termination day of the first nearby underlying futures contract month, on all other business days, the option shall continue to settle against the first nearby underlying futures contract month.

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For the full text of the advisory, click here.