Galleries Denver Security Traders Association By Editorial Staff - January 21, 2010 ShareTweetShare 1 of 10 Richard Grecco, Adelki Polce, both Bloomberg Tradebook, New York. Tommy Roszko, Jefferies & Co., Kevin Burns, Gerry Maker, both BIDS Trading, all New York. John Capuano, Knight Capital Group, Jersey City; John Ray, WM Smith & Co., Denver. Tony Cullen, Sandler O'Neil, Keylan Tildsley, Goldman Sachs, both new York; Marc Van Rijssen, Curian Capital Denver. David Margulies, Pragma, Tony Scali, ISE Group, both New York; Doug Henderson, Todd Phillips, both Weeden & Co., Greenwich. ShareTweetShare