News Release

April 2005 Volume

Fri Apr 01 2005

CME Reports Record Average Daily Volume of 4.9 Million Contracts in April, Up 47 Percent from Year-Ago Period; Monthly Volume Exceeds 100 Million Contracts for First TimeCME® Globex® Volume Increased 113 Percent vs. April 2004, Averaging More Than 3 Million Contracts for First Time CHICAGO, May 2, 2005 - CME, the largest U.S. futures exchange, today said average daily volume for April was 4.9 million contracts, up 47 percent from the same period a year ago and marking CME’s fourth consecutive record month. Total monthly volume was more than 102 million contracts, exceeding 100 million for the first time ever. Average daily volume on the exchange’s CME® Globex® electronic trading platform rose to a record 3.4 million contracts, a 113 percent increase from April 2004. Electronic trading represented more than 70 percent of total CME volume in April, compared with 48 percent in the prior-year period and up from 65 percent in March. CME total interest rate volume was a record 2.9 million contracts per day in April, up 51 percent from the same period a year ago. This increase was driven by electronic CME Eurodollar futures, which represented 81 percent of total CME Eurodollar futures volume in April, compared with 30 percent in April 2004. Electronic CME Eurodollar futures averaged 1.6 million contracts per day in April, up more than 300 percent from the same period a year ago and up 38 percent from March. Trading in CME E-mini™ equity index products averaged 1.5 million contracts per day in April, up 35 percent compared with the same period last year. This was the highest monthly volume ever, beating the March 2005 record of 1.3 million. Average daily volume of CME foreign exchange products was 307,000 contracts, representing notional value of $40 billion per day and a 94 percent increase compared with April 2004. During the month, electronic foreign exchange products increased 141 percent from the same period one year ago to reach 254,000 contracts per day. During April, CME averaged a record 976,000 options on futures contracts per day. This was CME’s third consecutive record month in options. More than 43,000 options contracts per day were traded electronically in April - also a monthly record. Open interest for all CME products at the end of April was above 31 million contracts, with an additional 8.5 million Total Return Asset ContractsTM (Trakrs). Additionally, the Chicago Board of Trade (CBOT) had approximately 13.6 million open positions at the CME Clearing House in April. Open interest represents the number of contract positions that are not closed out at the end of a trading session. CME MONTHLY AVERAGE DAILY VOLUME (In Thousands) April 2005 April 2004 Percent Change CME PRODUCT LINE Interest Rates 2,933 1,937 51% E-Minis 1,475 1,094 35% Equity Standard 105 87 21% Foreign Exchange 307 159 94% Commodities 41 38 10% Sub Total 4,862 3,315 47% TRAKRS 29 79 -63% Total 4,891 3,393 44% VENUE Open Outcry 1,409 1,677 -16% Globex (Ex trakrs) 3,413 1,605 113% Privately Negotiated 41 32 26% The following information was provided during the CME Q1 2005 earnings release CME RATE PER CONTRACT THROUGH MARCH 2005 (excluding TRAKRS) Average Rate Per Contract (In Dollars)Rolling Three-Month Average 3-Month Period Ending

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