Market Data Advisory Notices
To Market Data Distributors
From Market Data Operations
Subject FINAL REMINDER: ITC 2.1 Message Changes to Volume and Size Fields - Effective Sunday, July 29, 2007
Notice Date 2007-07-25
Notice Number Q2007-188
Effective Date 2007-07-29

Please be reminded of the following important ITC 2.1 market data message changes.  These changes affect CME ® and NYMEX ITC 2.1 market data for CME Globex ® - traded products transmitted over the CME Market Data Platform (MDP).  Please note that an additional, final ticker test has been scheduled to include both CME and NYMEX market data over the CME MDP for this Friday, July 27, at approximately 5:00 p.m. Central Time.

Please view the attached memo for more information.