
The word "Clearing" appears on a door at the entrance of the clearing floor of the CME Group Inc.'s Chicago Board of Trade offices in Chicago, Illinois, U.S., on Thursday, Nov. 15, 2012. Starting in March, as much as 79 percent of derivatives trades known as swaps must be backed by collateral and go through clearinghouses such as CME Group. Photographer: Daniel Acker/Bloomberg
Daniel Acker/Bloomberg