Performance Bond Changes Effective 10/24/07

Performance Bond (Margin) Advisory Notices

To	Clearing Member Firms, Chief Financial Officers, Back Office Managers & Margin Managers
From	CME Clearing
Subject	CME Performance Bond Changes Effective 10/24/07
Notice Date	2007-10-22
Notice Number	07-253
Effective Date	2007-10-24
As per the normal review of market volatility to ensure adequate collateral coverage, the Chicago Mercantile Exchange Inc., Performance Bond staff approved the performance bond requirements for the products listed on the attached advisory. These margins will become effective at the close of business on Wednesday, October 24, 2007. For the full text of this advisory . . .