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 Weather Products - January 8, 2003
Effective Date 01/07/03
Notice Number 03-03

The Chicago Mercantile Exchange Inc. Performance Bond staff met to review price volatility for the weather products and approved the performance bond changes described below.  These changes will become effective at the close of business Wednesday, January 8, 2003.
The staff recommendations are listed below:

PB Requirement Changes for Weather Futures

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