ITC 2.1 Impact of CME® Auction Markets Market Data -- Effective February 27, 2006

Market Data Advisory Notices

To	Market Data Distributors
From	Market Data Operations
Subject	ITC 2.1 Impact of CME® Auction Markets Market Data -- Effective February 27, 2006
Notice Date	2006-02-08
Notice Number	Q2006-20
Effective Date
Effective for the trade date of Monday, February 27, 2006, CME Auction Markets will begin trading on CME^® Globex^®. The attached notice details the ITC 2.1 impact of market data from CME Auction Markets, and provides sample data. While there are no changes to CME market data message formats with this launch, market date messages generated by CME Auction Markets may define or use existing fields differently. In addition, several new spread types will be listed to support CME Auction Markets products.