Effective Monday, February 26, 2007 , CME^® will begin disseminating twenty-two new S&P Indexes, detailed in Exhibit I, in the attached notice .  These indexes will be disseminated every fifteen seconds with an Exchange Code of “M” via Channel 3 of the Market Data Platform.

Please note that there will be no corresponding futures contracts listed at this time.

If you have any questions regarding this notice, please contact:

Marilee Radecki           312.930.8193             mradecki@cme.com

Kevin Brady                 312.648.3653             kbrady@cme.com

Thank you.