Hazem Dawani, Options City, Fred Rosenstein, Aquire Media, Dax Rodriguez, LiveVol, Vineet Wilson, Sandler ONeil, all Chicago.
William Libby, Tara Muller, both Knight Capital Group, Jersey City; Cheryl Gilberg, Daniel Strack, both Goldman Sachs, New York; Douglas Borden, Knight Capital Group, Jersey City.
Bronson Plocus, Commerce Bank, Summit; Marty Kearney, CBOE, Tim ODonnell, GCG Financial, both Chicago.
Laurie Gloww, Chris Voight, both Bank of America Merrill Lynch, Chicago.
Fred Ingles, Citadel Execution Services, Chicago; Ryan Kwaitkowski, Intl Assets, Orlando; Tom Sass, eTrade, Chicago.
John Denza, BATS, Dan Weingarten, ITG, Drew Krichman, Getco, Jon Schnieder, BATS, all New York.
Tony Meyers, Peter Hancuch, both RBC Capital Markets, New York; Fred Ingles, David Bingman, both Citadel, Chicago; Angie Szela Kanska, Penson Financial, Dallas.