Learn from the past. Prepare for the future. Tracking the global digital assets ecosystem Galleries Denver Security Traders Association By Editorial Staff January 21, 2010 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. FacebookXPinterestWhatsApp Previous articleCommentary: Rest in PeaceNext articleD’Antona–Son of a Trader–Joins Traders Magazine RELATED ARTICLES GlobalTrading Podcast: Tech Modernization on the Buy Side GlobalTrading Podcast: Trends in Trade Surveillance GlobalTrading Podcast: A Chat With Cromwell Coulson of OTC Markets Group MOST READ SEC to Host Virtual Roundtable on Modernizing IPOs and Expanding Access to Public Markets July 9, 2026 Acadian’s Michael Doros on the Future of Systematic Credit Trading July 9, 2026 Horizon Trading Solutions Enhances its Electronic Trading Platform to Support Market Making on Kalshi July 9, 2026 MIAX Reaches Record Year-to-Date Average Daily Volume July 9, 2026 LMAX’s Chris Knight on Bank-Led Digital Asset Prime Brokerage July 8, 2026 PODCAST