Date:                           November 30, 2007

Recipients:                 Members and Independent Software Vendors

Authorized by:            Jeffrey S. Hersh

Title:                           Early Publishing of Metals Options Settlement Prices

Action Date:               Friday, November 30, 2007

Recommended for:    All Departments

Related Bulletins:      n/a

Attachment:                n/a

SUMMARY:

In order to provide more efficient service to the trading community, Market Operations will begin publishing the e-cbot Gold options (symbol OZG) and e-cbot Silver options (symbol OZI) settlement prices at approximately 1:00 p.m. Chicago time, beginning Friday, November 30, 2007.  OZG and OZI will continue to trade until their normal closing time of 4:00 p.m.

Please contact Market Operations at 312-347-4600 or your Key Account Manager if you have any questions about this Bulletin.