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Responding to word earlier this month that Chicago Mercantile Exchange Holdings Inc. (CME) and CBOT Holdings, parent of the Chicago Board of Trade (CBOT), have revised the terms of their definitive merger agreement, Atlanta-based IntercontinentalExchange Inc. (ICE) has announced that it will invite members of (CBOT) to a meeting to discuss the benefits that an ICE/CBOT combination would deliver to shareholders, members, customers and employees.

Chicago Mercantile Exchange Holdings Inc. (CME) and CBOT Holdings, parent of the Chicago Board of Trade (CBOT), jointly announced Friday morning that they have revised the terms of their definitive merger agreement, potentially leaving the rival bid for CBOT from Atlanta-based IntercontinentalExchange (ICE) in jeopardy.

Chicago Mercantile Exchange Holdings Inc. (CME) and CBOT Holdings, parent of the Chicago Board of Trade (CBOT), jointly announced Friday morning that they have revised the terms of their definitive merger agreement, potentially leaving the rival bid for CBOT from Atlanta-based IntercontinentalExchange (ICE) in jeopardy.

Nymex Holdings Inc., parent company of the New York Mercantile Exchange Inc. (Nymex), said this week that it has completed and signed definitive agreements with Optionable Inc. — a provider of natural gas and other energy derivatives brokerage services — and its founding stockholders, to acquire 19% of Optionable.

Nymex Holdings Inc., the parent company of the New York Mercantile Exchange Inc. (Nymex), said Tuesday that average daily volume for the first quarter 2007 was 1.512 million contracts per day, a 40% increase from the same period a year ago. Total volume was 92.210 million contracts for the first quarter. Nymex reported that volume of its contracts on the Chicago Mercantile Exchange’s (CME) Globex electronic trading platform for the first quarter 2007 was 597,000 contracts per day and represented a 485% increase over the first quarter 2006 electronic volume on Nymex Access, which Globex ended up replacing. As another indicator that volume is migrating from the floor to Globex, Nymex floor-traded average daily volume was 330,000 contracts per day, a decrease of 39% from the first quarter 2006. March highlights for the company included average daily volume of 1.372 million contracts per day, a 44% increase from 956,000 per day in the same period of 2006. Nymex electronic volume during the month on the CME Globex electronic trading platform was 567,000 contracts per day and represented a 473% increase over the March 2006 electronic volume on Nymex Access. Nymex floor volume averaged 267,000 contracts per day, a decrease of 46% from March 2006.

Looking to take a second bite of the apple, Nymex Holdings Inc., the parent company of the New York Mercantile Exchange Inc., announced last week the pricing of its secondary offering of seven million shares of its common stock at $136.50 per share.

Nymex Holdings Inc., the parent company of the New York Mercantile Exchange Inc. (Nymex), on Friday closed on the previously announced purchase of a 10% equity stake in the Montreal Exchange Inc. (MX), Canada’s financial derivatives exchange. As part of the deal, Nymex and MX also announced the creation of the Canadian Resources Exchange Inc. (Carex), their new joint business venture dedicated to the Canadian energy marketplace.

Looking to take a second bite of the apple, Nymex Holdings Inc., the parent company of the New York Mercantile Exchange Inc., late Wednesday announced the pricing of its secondary offering of seven million shares of its common stock at $136.50 per share.

Cap Rock Holding Corp. agreed to acquire SEMCO Energy Inc. — parent of utilities SEMCO Energy gas Co. in Michigan and ENSTAR Natural Gas Co. in Alaska in an $867 million cash and debt deal.