Performance Bond (margin) Advisory Notice
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To Chief Financial Officers, Back Office Managers, Margin Managers
From Clearing House Department
Subject Performance Bond Requirement Changes for Seasonal Weather Index Products
Effective Date 05/20/03
Notice Number 03-36

The Chicago Mercantile Exchange Inc. Performance Bond staff met to review price volatility for the new weather products and approved the performance bond changes described below.  These changes will become effective with the launch of these products on Monday, May 26, 2003.

The staff recommendations are listed below:

PB Rates for New Weather Index Products

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