The following margin rate changes will become effective with the mid-day calculation on Friday, October 24, 2003:

CBOT Margin Rates	From	To
Soybeans	$1000	$1200
Mini Soybeans	$200	$240
Soybean Oil	$400	$550
Rice	$750	$550
Long Term Agencies	$1900	$1750
10-Year Interest Rate Swap	$1900	$1750

	From:			To:
CBOT Inter-Commodity Spread Credit Rates	Spread Margin %	Spread Savings %		Spread Margin %	Spread Savings %
10-Year Treasury Notes vs. 2-Year Treasury Notes (2:3)	35%	65%		30%	70%
Mini 10-Year Treasury Notes vs. 2-Year Treasury Notes (4:3)	35%	65%		30%	70%
2-Year Treasury Notes vs. 5-Year Treasury Notes (1:1)	30%	70%		25%	75%
US Year Treasury Bonds vs. Long Term Agencies (1:2)	35%	65%		30%	70%
Mini US Year Treasury Bonds vs. Long Term Agencies (1:1)	35%	65%		30%	70%
10-Year Treasury Notes vs. Long Term Agencies (1:1)	25%	75%		20%	80%
Mini 10-Year Treasury Notes vs. Long Term Agencies (2:1)	25%	75%		20%	80%
5-Year Treasury Notes vs. Long Term Agencies (3:2)	30%	70%		25%	75%
2-Year Treasury Notes vs. Long Term Agencies (3:2)	45%	55%		40%	60%
5-Year Treasury Notes vs. 5-Year Interest Rate Swap (1:1)	20%	80%		15%	85%

CBOT Old – New Crop Spread Charges	From	To
Soybeans	$450	$550
Soybean Meal	$300	$450

Should you have any questions, please call or e-mail one of the following Client Services and Support Representatives:

John Compall		john.compall@clearingcorp.com
Marc MacQuarrie	786-5732	marc.macquarrie@clearingcorp.com
Molly McMahon	786-5731	molly.mcmahon@clearingcorp.com
Jill Turner	786-5718	jill.turner@clearingcorp.com
Thomas Andrews	Director	thomas.andrews@clearingcorp.com
Client Services and Support E-Mail Address		css@clearingcorp.com
Clearing Corporation Web Site		http://www.clearingcorp.com