Dear CME Globex Customers,

Effective this Sunday, November 13, 2005 (trade date November 14), to streamline market data dissemination, the CME Market Data Platform will disseminate CME Goldman Sachs Commodity Index^® (GSCI) market data on the CME Globex Equity Futures Channel (Channel 7), instead of the CME Globex Commodity, Industrial Commodity, and TRAKRS Futures Channel (Channel 13).

This change does not impact CME Market Data API (MD API) and CME Market Data Network (MDN) users.

Additional information on the CME Market Data Platform channels can be found in Appendix A of the Production Environment Connection Guide, part of the CME Market Data Platform Software Development Kit.

For information on accessing the new CME Market Data Platform certification environment, or for any additional questions, please contact your CME Globex Account Manager at 312.634.8700; or at +44.207.623.2550 in Europe.

Thank you,

CME