CAUSE: On Friday, February 08, 2002 at 2:34 PM CT, the processes responsible for delivery of all market data for GLOBEX instruments stopped processing. This was due to a file size limit being exceeded within the operating system.

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. It was determined that the processes could not be repaired prior to the close of the markets. Updates to all notification points were made to inform users that trading would be suspended at 2:55 PM CT.

RESOLUTION: Development 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. In the interim, beginning Sunday, February 10, 2002, we will be eliminating the full market depth in ALL markets (same practice currently used in the ES & NQ markets). The 5 deep instrument summary book will still be available in ALL markets. Additionally, we will be proactively monitoring the file sizes in question to insure they do not reach critical levels.

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