Performance Bond Changes Effective 12/17/07

Clearing House Advisory Notices

To	Clearing Member Firms, Chief Financial Officers, Back Office Managers & Margin Managers
From	CME Clearing
Subject	Performance Bond Changes Effective 12/17/07
Notice Date	2007-12-14
Notice Number	07-308
Effective Date	2007-12-17
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 Monday, December 17, 2007. For the full text of this advisory . . .