TO:	ALL CLEARING PARTICIPANTS
FROM:	CLIENT SERVICES AND SUPPORT
DATE:	September 8, 2005
SUBJECT:	Eurex US Margin Rates

The following margin intervals and spread credit rates are effective with the mid-day margin calculation on Friday, September 9, 2005.

Eurex US Margin Rates	From	To
2-Year Jumbo Treasury Notes	$2,000	$2,300

Eurex US Inter-Commodity Spread Credit Rates	Spread Margin % From	Spread Savings % From	Spread Margin % To	Spread Saving $ %
US Treasury Bonds vs. 2-Year Jumbo Treasury Notes (1:1)	35%	65%	45%	55%
10 Year Treasury Notes vs. 2 Year Jumbo Treasury Notes (1:1)	45%	55%	55%	45%
10 Year Treasury Notes vs. 2 Year Jumbo Treasury Notes (2:1)	25%	75%	30%	70%
5 Year Treasury Notes vs. 2 Year Jumbo Treasury Notes (3:1)	20%	80%	25%	75%
3 Year Treasury Notes vs. 2 Year Jumbo Treasury Notes (3:1)	55%	45%	60%	40%

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