Performance Bond Requirement Changes for One Chicago Single Stock Futures effective 1/27/03

Performance Bond (margin) Advisory Notice

To	Chief Financial Officers, Back Office Managers, Margin Managers
From	Clearing House Department
Subject	Performance Bond Requirement Changes for One Chicago Single Stock Futures effective 1/27/03
Effective Date	01/24/03
Notice Number	03-09

Chicago Mercantile Exchange Inc., Performance Bond staff approved the performance bond requirements for OneChicago Security Stock Futures listed below. The margins will become effective with the launch of the products on Monday, January 27, 2003.

The staff recommendations are listed below:

PB requirements for OneChicago Singe Stock Futures

This document can be received electronically. Send an e-Mail to lists@cme.com with the text �subscribe pbrates� in the body of the message to subscribe.