Swapstream, the market-leading multilateral electronic trading platform for interest rate swaps (IRS), today announced the expansion of its market place with the planned introduction in mid February of an Eonia (Euro Overnight Index Average) swaps trading facility. This new facility will allow traders on the short end of the IRS curve to experience the significant benefits realized by Swapstream users who currently trade on the medium to long end of the IRS curve.

The New York Mercantile Exchange, Inc., a subsidiary of NYMEX Holdings, Inc. (NYSE:NMX), announced today that it set a daily volume record for natural gas futures on the CME Globex electronic trading platform yesterday. Natural gas futures reached a record 130,627 contracts, surpassing the 126,015 contracts traded on January 19.

To reduce transaction costs for existing clearing members and attract new participants to its markets, Chicago Mercantile Exchange Holdings Inc. (NYSE, NASDAQ: CME) today announced it will reduce the requisite number of CME Class A Shares its clearing members must acquire and hold as part of their capital investment requirement.

Chicago Mercantile Exchange Holdings Inc. (NYSE, NASDAQ: CME) announced today that CME Executive Chairman Terrence Duffy and Chief Executive Officer Craig Donohue will present at the Credit Suisse Financial Services Forum in Naples, Florida on Wednesday, February 7, at 1:15 p.m. (Eastern Time).

Chicago Mercantile Exchange Holdings Inc. (NYSE, NASDAQ: CME) today declared a first-quarter dividend of 86 cents per share, representing a 37 percent increase over the prior-year quarterly dividend of 63 cents per share, payable March 26, 2007 to shareholders of record as of March 9, 2007.