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 Podcast: Investors Know What Not to Do in Emerging Markets. They Keep Doing It Anyway. Julie Segal Kristie Nettles, V.P., Managing Director and Head of Global Insurance and Institutional (North America) Marketing, AllianceBernstein Institutional Investor Q&A: Where Does FX Liquidity Live When Volatility Hits? Sponsored by CME Group