Ticker Symbols: Calls: CQ Puts: PQ

Underlying Contract: One T-bill futures contract

Strike Prices: $.25 intervals, e.g., 93.00, 93.25, 93.50

Premium Quotations: Total IMM Index points, e.g., 0.34 quoted as "34 Index points" or "34 basis points"

Min Price Fluct.: U.S. $25.00 1 IMM Index point 0.01 or I basis point, e.g., from 0.34 to 0.35 (cabinet = $12.50)

Daily Price Limit: None

Contract Months: March, June , Sep, Dec

Trading Hours: (Chicago Time) 7:20 am 2:00 pm

Last Day of Trading: Last business day of the week, preceding by at least 6 business days the first business day of contract month.

Min Perform. Bond: No performance bond required for put or call option buyers, but the premium must be paid in full; option sellers must meet additional performance bond requirements as determined by the Standard Portfolio Analysis of Risk (SPAN') performance bond system.

Exercise Procedure: An option may be exercised by the buyer up to and including the last day of trading. To exercise, the clearing member representing the buyer submits an Exercise Notice to the Clearing House by 7:00 p.m. on the day of exercise. Any long in the money option position not liquidated or exercised prior to termination of trading will be automatically exercised.