Elkins/McSherry - Market Impact Trend Global Transaction Costs Decline Despite High Frequency Trading. November 11, 2010 See related article, Elkins/McSherry - Global Transaction Costs Decline Despite High Frequency Trading. High Frequency Trading New York Stock Exchange Transaction Costs Nasdaq Elkins Mcsherry Global Trading Related Articles For Members Only Light Street Stung by July Tech Rout, Still Tops Broader Market Stephen Taub Opinion: Private Markets Face Their Next Test Thomas Deinet The Certainty of Uncertainty: Navigating the Shifting Private Landscape Sponsored by KPMG