During March and April, CME GLOBEX�2 users will transition to a new host architecture that will enhance system stability, augment order throughput performance, and improve order information processing.

The new GLOBEX� users will transition to a new host architecture that will enhance system stability, augment order throughput performance, and improve order information processing.

The new GLOBEX�2 technology involves processes that accept orders from your firm�s order entry server and/or CME FIX connection. Currently, all order entry servers and/or CME FIX connections access the host via the FI (Frontal Interface). Starting in March, the CME will begin phasing out the old FI design and introduce the new HIP/HOP structure (Host Input Process/Host Output Process). Do note that no programming changes will be necessary by your firm for this transition to occur.

Every Friday during the transition we will be asking all users to cancel any GTC or GTD orders working in the E-mini S&P 500 ("ES"), E-mini Nasdaq 100 ("NQ"), and S&P 500 Barra Growth ("SG") contracts for Saturday testing purposes. Any GTC or GTD ES, NQ, or SG orders remaining in the GLOBEX� technology involves processes that accept orders from your firm�s order entry server and/or CME FIX connection. Currently, all order entry servers and/or CME FIX connections access the host via the FI (Frontal Interface). Starting in March, the CME will begin phasing out the old FI design and introduce the new HIP/HOP structure (Host Input Process/Host Output Process). Do note that no programming changes will be necessary by your firm for this transition to occur.

Every Friday during the transition we will be asking all users to cancel any GTC or GTD orders working in the E-mini S&P 500 ("ES"), E-mini Nasdaq 100 ("NQ"), and S&P 500 Barra Growth ("SG") contracts for Saturday testing purposes. Any GTC or GTD ES, NQ, or SG orders remaining in the GLOBEX�2 trading engine after 3:15 PM CST will be canceled by the GCC. GTC and GTD orders working in other markets or in the Order Management Database ("OM") will not be affected.

Another letter will be issued to your firm within two weeks of your scheduled migration date. That correspondence will detail both the weekend(s) your firm will be converted along with the recommended test requirements for the specified conversion weekend.

If you have any questions regarding the architecture migration, please call the GCC at 312-456-2391 option 2.