Elkins/McSherry - Average Execution Time 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 Third Point Hit by Momentum Reversal, Posts July Decline Stephen Taub Foreign Capital Is Reshaping Gulf Trading Desks Laurie McAughtry What Past Sector Concentrations Tell Us About Today's Tech-Heavy S&P 500 Sponsored by CME Group