FINAL REMINDER AND DATE CHANGE: ITC 2.1 Message Changes to Volume and Size Fields

Market Data Advisory Notices

To	Market Data Distributors
From	Market Data Operations
Subject	FINAL REMINDER AND DATE CHANGE: ITC 2.1 Message Changes to Volume and Size Fields - Delayed Until Sunday, August 12, 2007
Notice Date	2007-07-26
Notice Number	Q2007-190
Effective Date	2007-08-12
*As the result of customer requests, CME ^®* *Group* *is further delaying the implementation of the attached changes until Sunday, August 12, 2007.* Please be reminded of the attached 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.