OneChicago Select Index J Margins Effective 1/29/07

Performance Bond (Margin) Advisory Notices

To	Clearing Member Firms, Chief Financial Officers, Back Office Managers & Margin Managers
From	Clearing House Department
Subject	OneChicago Select Index J Margins Effective 1/29/07
Notice Date	2007-01-26
Notice Number	07-25
Effective Date	2007-01-29
Chicago Mercantile Exchange Inc., Performance Bond staff approved the performance bond requirements for the following OneChicago product listed on the attached advisory. These margins will become effective with the close of business on Monday, January 29, 2007. For the full text of this advisory . . .