Iconic 220-year-old exchange sells to competitor
                                
                                
                                    (Newser) -
                                    InterContinentalExchange Inc. has agreed to buy NYSE Euronext, the company that owns the New York Stock Exchange, for $8.2 billion, the two companies announced this morning. ICE, an Atlanta-based commodity exchange, says it intends to leave the NYSE's branding alone, and would explore an IPO for Euronext, spinning...