New OneChicago Product Effective 05/17/06

Performance Bond (Margin) Advisory Notices

To	Clearing Member Firms, Chief Financial Officers, Back Office Managers & Margin Managers
From	Clearing House Department
Subject	New OneChicago Product Effective 05/17/06
Notice Date	2006-05-16
Notice Number	06-122
Effective Date	2006-05-17
Chicago Mercantile Exchange Inc., Performance Bond staff approved the performance bond requirements for the New OneChicago Product listed on the attached advisory. These margins will become effective with the close of business on Wednesday, May 17, 2006. For the full text of this advisory . . .