CME Weather Margins Effective 6/5/07

Performance Bond (Margin) Advisory Notices

To	Clearing Member Firms, Chief Financial Officers, Back Office Managers & Margin Managers
From	Clearing House Department
Subject	CME Weather Margins Effective 6/6/07
Notice Date	2007-06-01
Notice Number	07-125 REVISED
Effective Date	2007-06-05
REVISED: PLEASE NOTE THE EFFECTIVE DATE HAS BEEN CHANGED TO WEDNESDAY, JUNE 6, 2007 Chicago Mercantile Exchange Inc., Performance Bond staff approved the performance bond requirements for the following Weather products listed below. These margins will become effective with the close of business on Wednesday, June 6, 2007. For the full text of this advisory . . .