VOLUME 21 - BULLETIN #150

TO:	ALL CLEARING MEMBERS
FROM:	BUSINESS SYSTEMS GROUP
DATE:	July 18, 2001
SUBJECT:	Margin Updates

The Board of Trade Clearing Corporation has authorized the following margin changes effective with the mid-day margin calculation on Friday, July 20, 2001:

Should you have any questions, please call or e-mail one of the following Business Systems Analysts: