UPDATE 3-ICE to buy NYSE Euronext for $8.2 bln
December 20, 2012 at 14:22 PM EST
NEW YORK/LONDON, Dec 20 (Reuters) - IntercontinentalExchange struck an $8.2 billion deal to buy NYSE Euronext, a combination that will propel the commodities market powerhouse into European financial futures but threaten to further reduce the clout of the New York Stock Exchange.