January 7, 2011 NYSE Euronext (NYX) today announced trading volumes for its global derivatives and cash equities exchanges for December 2010 [1] Global derivatives average daily volume (ADV) of 6.7 million contracts traded per day in December 2010 decreased 6.2% versus the prior year. The decrease in global derivatives ADV versus prior year levels was driven primarily by a 17.7% decrease in European derivatives, partially offset by an 8.7% increase in U.S. equity options ADV. Cash equities ADV in December 2010 was mixed, with European cash ADV increasing 12.9% and U.S. cash trading volumes decreasing 13.5% from December 2009 levels.