Proposed CBOT Migration Client Impact Assessment
CME previously announced that it intends to migrate e-cbot products to CME Globex in a phased approach beginning Q1 2008, subject to completion of the CME-CBOT merger, which is expected to occur mid-2007, pending approvals by regulators, shareholders of both companies and CBOT members, as well as completion of customary closing conditions. In an effort to provide information as early as possible regarding this electronic trading migration, the CME/CBOT Client Impact Assessment document is now available for your reference at www.cme.com/CBOTImpact. Key topics discussed in this document are as follows:

1. Key Dates and Events
2. CME Globex System Impacts
   • Product-Specific Functionality
   • Fractional and Cabinet Pricing
   • Implied Spread Functionality
   • Matching Algorithms
   • Market Data Messages and Channels
   • Testing and Certification
3. Bandwidth Recommendations
4. Messaging Policy Implications
5. User Identification

For more information about this client impact document, please contact CME Globex Account Management or via phone at 312.634.8700 or at +44.20.7623.2550 in Europe.