Dear CME Globex Customers,

To increase the headcount and create a more robust sample, CME is adding calves to the CME Feeder Cattle Index effective with the March 2007 contract. To support this index change, the CME Feeder Cattle March 2007 futures and options contracts listing will be delayed from this Friday, March 31, until Friday, April 28, 2006.

Both the March 2007 and April 2007 contracts will be listed on April 28.

CME Feeder Cattle futures trade side-by-side during regular trading hours on the trading floor and the CME Globex platform. Options on CME Feeder Cattle futures are only available for trading on the floor.

If you have any questions or concerns, please contact Jack Cook, Associate Director, Commodity Research and Product Development, at 312.930.3295; Paul Peterson, Director, Commodity Research and Product Development, at 312.930.4587; or your CME Globex Account Manager at 312.634.8700, or in Europe at +44.207.623.2550.

Thank you,

CME