CME Group Inc. (CME) reported that Tuesday's market swoops drove record trading activity in its electronic futures and options markets.

More than 25.7 million contracts changed hands on CME's markets Tuesday as the contract price of its electronic futures on the Standard & Poor's 500 stock index hit its lowest level in a year before investors rallied behind the Federal Reserve's commitment to keep rates near zero until mid-2013.

"All that energy in the markets took us to extremes," said Frank Lesh, a broker with Futurepath Trading in Chicago. "And a lot of speculators wanted in on the action."

--By Jacob Bunge, Dow Jones Newswires; 312 750 4117; jacob.bunge@dowjones.com

--Howard Packowitz contributed to this article.

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