New OneChicago One Select Index P Effective 7/12/07

Performance Bond (Margin) Advisory Notices

To	Clearing Member Firms, Chief Financial Officers, Back Office Managers & Margin Managers
From	Clearing House Department
Subject	New OneChicago Select Index P Effective 7/12/07
Notice Date	2007-07-11
Notice Number	07-162
Effective Date	2007-07-12
Chicago Mercantile Exchange Inc., Performance Bond staff approved the performance bond requirements for the OneChicago Select Index P listed on the attached advisory. These margins will become effective with the launch of this product on Thursday, July 12, 2007. For the full text of this advisory . . .