TO: All GLOBEX Users

FROM: John M. Restivo, Director GLOBEX Control Center

DATE: Monday, May 06, 2002

SUBJECT: System Update #13 Suspension of Trading due to Market Dissemination Issues

CAUSE: On Monday, May 06, 2002 at 6:03 PM CT, the processes responsible for the delivery of all market data for GLOBEX instruments stopped processing. At 6:14:21 PM CT, the halting of all markets resulted. This was due to a problem in restoring data dissemination applications.

RESPONSE: Emergency e-mails, voice mails and TUG pages were sent and updated when appropriate. Senior staff was notified and the operations staff began the process of restoring service to all users. By 10:00 PM CT, all processes were repaired and it was determined markets would open at 11:00 PM CT. Updates to all notification points were made to inform users of all developments.

RESOLUTION: Developmental specialists will investigate this failure to determine the exact nature of its cause and will then make a recommendation to senior staff on a permanent solution. Emergency response procedures will be modified to limit down-time in the event of a similar failure.

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