New OneChicago Select Indexes Effective 12/19/06

Performance Bond (Margin) Advisory Notices

To	Clearing Member Firms, Chief Financial Officers, Back Office Managers & Margin Managers
From	Clearing House Department
Subject	New OneChicago Select Indexes Effective 12/19/06
Notice Date	2006-12-18
Notice Number	06-313
Effective Date	2006-12-19
Chicago Mercantile Exchange Inc., Performance Bond staff approved the performance bond requirements for the following new OneChicago products listed on the attached advisory. These margins will become effective with the launch of these products on Tuesday, December 19, 2006. For the full text of this advisory . . .