Contract Unit 1 futures contract with face value at maturity of $100,000
Minimum Price Fluctuation Outright: 1/64th of 1 point (0.015625) = $15.625
CAB $1.00 increments from $1.00 - $15.00
Price Quotation Points and fractions of points with par on the basis of 100 points
Trading Hours CME Globex: Sunday 5:00 p.m. - Friday - 4:00 p.m. CT with a 60-minute break each day beginning at 4:00 p.m. CT
Open Outcry: Mon - Fri: 7:20 a.m. -  2:00 p.m. CT
CME ClearPort: Sunday 5:00 p.m. - Friday 5:45 p.m. CT with no reporting Monday - Thursday from 5:45 p.m. – 6:00 p.m. CT
Product Code CME Globex: WB1,WB2,WB3,WB4,WB5
CME ClearPort: WB1,WB2,WB3,WB4,WB5
Open Outcry: WB1,WB2,WB3,WB4,WB5
Clearing: WB1,WB2,WB3,WB4,WB5
Listed Contracts Weekly contracts listed for 2 consecutive weeks
Termination Of Trading Trading terminates on Wednesday of the contract week
Position Limits CBOT Position Limits
Exchange Rulebook CBOT 18A
Block Minimum Block Minimum Thresholds
Price Limit Or Circuit Price Limits
Vendor Codes Quote Vendor Symbols Listing
Strike Price Listing Procedures Strike prices will be listed in increments of one-half of one point. The minimum strike price range will include the at-the-money strike price closest to the current futures price plus the next forty (40) consecutive higher and the next forty (40) consecutive lower strike prices.
Exercise Style American Style: The buyer of an option may exercise the option on any business day prior to expiration by giving notice to CME Clearing by 5:30 p.m. CT.  Following termination of trading, options that expire in?the?money are automatically exercised into underlying futures, with no allowance for contrary instruction.  Automatic exercise is determined in relation to the daily settlement price of the option’s underlying futures contract.
Settlement Method Deliverable
Underlying U.S. Treasury Bond Futures


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