IEX Nasdaq CEO Says ‘Flash Boys’ Rule May Complicate the US Stock Market Approval of a new regulatory standard related to the U.S. stock exchange application of startup trad... Apr 13, 2016 02:18 AM EDT IEX trading group restructures system to gain SEC approval The IEX trading group has confirmed that it has already removed its speed advantage against competit... Mar 04, 2016 07:14 PM EST