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 New Hampshire Expands Team with New Private Markets Hire James Comtois Bryn Mawr’s CIO on Liquidity and Navigating Market Turbulence James Comtois While Inflation Grabs Headlines, Employment Numbers Drive Market Moves Sponsored by CME Group