April 16, 2013 - Knight Capital saw its revenue plunge by half in 2012 and its loss for the year exceed the $457 million it paid out for a flood of erroneous orders it sent out on August 1. The market maker is being acquired by GETCO, another market maker, which also saw its profits fall 90 percent last year.
April 12, 2013 - Robert Greifeld, the chief executive officer of Nasdaq OMX Group Inc., received 18 percent more in compensation for 2012 even as his bonus was reduced due to the mishandling of the Facebook Inc. initial public offering.
March 28, 2013 - BATS Global Markets has started publishing rankings of 12 national exchanges by "market quality." The narrowest spreads win.
May 4, 2009 - LiquidPoint, beefing up its options trading technology, is launching a tool that sprays orders simultaneously across execution venues.