CHICAGO, IL - FEBRUARY 11: Traders work on the trading floor at the CME Group on February 11, 2011 in Chicago, Illinois. The the CME Group was formed following the merger of the Chicago Mercantile ... more 
CHICAGO, IL - FEBRUARY 11: Traders work on the trading floor at the CME Group on February 11, 2011 in Chicago, Illinois. The the CME Group was formed following the merger of the Chicago Mercantile Exchange and the Chicago Board of Trade. Following the announcement of a potential merger between NYSE Euronext and Deutsche Borse, analysts are speculating if the CME Group, Nasdaq, or the CBOE would search for merger partners to increase their international exposure. (Photo by Scott Olson/Getty Images) less 
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Getty Images | Photo By Scott Olson / Getty Images
Fri, Feb 11, 2011 6:43 PM EST