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 Middle East Markets Diverge Under Pressure Laurie McAughtry A New Short-Only Fund Is Coming — And Markets May Be Ready for It Michelle Celarier II Communities on Global Markets Sponsored by CME Group