CME Group to Begin Disseminating S&P CREX Indexes - Effective Tuesday, September 18, 2007

Market Data Advisory Notices

To	Market Data Distributors
From	Market Data Operations
Subject	CME Group to Begin Disseminating S&P CREX Indexes - Effective Tuesday, September 18, 2007
Notice Date	2007-08-23
Notice Number	Q2007-212
Effective Date	2007-09-18
Beginning *Tuesday, September 18, 2007* , CME Group will begin disseminating ten (10) new S&P CREX indexes listed in the attached memo. These indexes will be transmitted *on the second to last Tuesday of every month, at 8:00 a.m. Central Time* , with and Exchange Code of “M” via Channel 3 of CME’s MDP.