Welcome to the CME Globex Notices for the week of June 11, 2007.

• Proposed CBOT Merger Client Impact Assessment
• FIX/FAST Software Development Kit Available
• This Week
  • Extended Listings for CME Equity Futures
  • Mock Trading Session for NYMEX and COMEX Options This Saturday
  • Reminder: ITC Market Data for NYMEX on CME Globex on CME Market Data Platform
  • Reminder: NYMEX Options Launch on CME Globex
• June
  • Reminder: NYMEX Financially Settled Energy Futures Delisting on CME Globex
• July
  • Reminder: Legacy Certification Environment Decommission
  • Extended Listings for NYMEX Uranium Futures on CME Globex
  • Reminder: CME Eurodollar Extension

If you have any questions or concerns, please contact your CME Globex Account Manager at 312.634.8700; or at +44.20.7796.7100 in Europe.

Proposed CBOT Merger 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 +44.20.7796.7100 in Europe.

FIX/FAST Software Development Kit Available  
The FIX/FAST Software Development Kit, with sample messages and templates, is now available online at www.cme.com/fixfast.

The new FIX/FAST market data format, the next step in CME market data, drastically reduces end-to-end latency and improves bandwidth scalability. The new format is based on FIX and FAST protocols for increased efficiency. FIX/FAST is the basis of a new industry standard for market data. FIX/FAST is scheduled to launch in New Release by end of July, 2007, and in production in late Q3 2007.

Extended Listings for CME Equity Futures  
Effective this Sunday, June 24, 2007 (for trade date Monday, June 25), the following CME Equity futures listed on CME Globex will be expanded. This expansion only applies to outright futures contracts; there is no change to spreads or options.

Reminder: ITC Market Data for NYMEX on CME Globex on CME Market Data Platform  
Effective this Sunday, June 24, 2007, ITC2.1 market data for NYMEX and COMEX products on CME Globex will be available via the CME Market Data Platform. With this launch, real-time NYMEX and COMEX on CME Globex market data will be available via CME Market Data Platform in both ITC2.1 and RLC formats.

NYMEX has announced that, as of September 28, CME Globex market data for NYMEX and COMEX products traded on CME Globex will no longer be available via the NYMEX ITC2.1 multicast feed.

More information on these changes, and the differences between CME and NYMEX ITC2.1 market data, is available online. CME Market Data Platform channel definitions for the new NYMEX and COMEX ITC2.1 channels in the New Release Certification environment, an FAQ, and a NYMEX-CME ITC2.1 Matrix are also available.

Reminder: NYMEX Options Launch on CME Globex  
Effective this Sunday, June 24, 2007 (for trade date Monday, June 25), options on NYMEX Crude Oil and Natural Gas futures and COMEX Gold and Silver futures will launch on CME Globex.

CME is hosting a second mock trading session for customers in the CME production environment, on Saturday, June 23. The NYMEX Options Mock Trading Session Plan and Script are currently available online. Participants will be able to download the Instrument Creation (MO (m-oh)) market data messages for the new options instruments from the CME Market Data Platform MO Replay channels starting at 7:40 a.m. Central time. The MO messages will also be available at 7:40 a.m. on the CME ftp site for download. CME strongly recommends customers purge these new instruments from their instrument databases at the close of the mock trading session. Please note: CME has introduced new channels on the CME Market Data Platform for these products. Participants must join these new channels, as defined in the Mock Trading Session Plan, to receive NYMEX and COMEX market data.

For NYMEX options, CME is introducing variable length strike prices of up to 5 bytes in the Complete Instrument Code field in RLC market data messages and in SecurityDesc (FIX tag 107) in CME iLink messages. Currently, in these fields CME supports fixed strike prices within product groups of up to 4 bytes. More information on RLC market data is available in the CME Market Data Platform SDK RLC Message Specifications volume. More information on CME iLink messaging is available in the CME iLink SDK Message Specifications volume.

These NYMEX options are currently available for customer testing in the New Release Certification environment.

CME Globex product snapshots for NYMEX options, NYMEX futures and NYMEX and COMEX metal futures are available online. More information about this NYMEX options launch is available at www.nymexoncmeglobex.com.

Reminder: NYMEX Financially Settled Energy Futures Delisting on CME Globex  
Effective Friday, June 29, 2007 (for trade date Monday, July 2), NYMEX is delisting the following financially settled energy products, including spreads, on CME Globex.

Reminder: Legacy CME Certification Environment Decommission  
Effective July 1, 2007, CME is decommissioning the legacy CME certification environment. The new certification environments, launched earlier this year, provide greater flexibility and functionality for developing, testing and certifying customer applications. More information on the new certification environments is available at www.cme.com/cert.

New IDs for the legacy CME certification environment are no longer available.

Any customers currently connected to the legacy CME certification environment will need to migrate to the new environments before the July 1 cut-off. Please contact your CME Globex Account Manager for more information and to start your migration.

Extended Listings for NYMEX Uranium Futures on CME Globex  
Effective Sunday, July 1, 2007 (for trade date Monday, July 2), the NYMEX Uranium futures contracts on CME Globex will be extended from the currently listed 36 months to 60 months.

Reminder: CME Eurodollar Extension  
Effective Sunday, July 15, 2007 (for trade date Monday, July 16), implied functionality will be extended out through the first ten years (40 contract months) for CME Eurodollar futures and future spreads. With this launch, CME is also launching implied butterfly and calendar futures spreads for the second five years. Implied butterfly and calendar futures spreads for the first five years are already available on the CME Globex platform.

The additional butterfly and calendar spreads and implied functionality are currently available in New Release for customer testing.