CBOT - Dow Jones-AIG Commodity Index Excess ReturnSM Time & Sales Electronic Futures

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Dow Jones-AIG Commodity Index Excess Return^SM

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CBOT September 2007 DJ-AIG Commodity Index Excess Return Settlement

CBOT Dow Jones – AIG Commodity Index Excess Return Futures

Trading Unit

$100 times the Dow Jones – AIG Commodity Index^SM (“DJ-AIGCI^SM”)

Price Quote

Points ($100)

Tick Size

0.1 point ($10 per contract)

Daily Price Limit

No limit

Contract Months

March, June, September, December (The first 4 quarterly contracts listed at all times, thereafter a December contract is listed such that there is always a total of 5 December contracts outstanding).

Last Trading Day

The 3^rd Wednesday of the contract month

Final Settlement Day

The 3^rd Wednesday of the contract month

Final Settlement

Cash settlement on the final settlement day. The final settlement value is $100 times the settlement price of the DJ-AIGCI^SM1.

Embedded Fee

40 basis points per annum, paid daily on an actual/365 day count basis. The fee will be debited from every long position holder’s margin account, with every short position holder receiving 10 basis points and the remaining 30 basis points applied to licensing and exchange fees. There is no embedded fee charged to the short position.

Trading Hours

8:15 a.m. – 1:30 p.m. Chicago time

Trading Platform

e-cbot®

Ticker Symbol

[1] Adjustments to the official settlement price may be necessary in the event of a market disruption on the expiration date. Please see the DJ-AIG ER Reference Guide for details.