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 Opinion: Retail Access to Private Markets? Continuation Funds Show Why Caution Is Critical Stephen Deane P10 Aims to Turn Data Into Alpha in the Middle Market John Crabb Portfolio Finance: 101 Sponsored by Barings