A divided Securities and Exchange Commission approved a plan to track all U.S. stock trading with a powerful computer system, the regulator’s biggest step since the 2010 “flash crash” to get a better handle on the rapid-fire trading that has come to dominate U.S. markets….
The system aims to give the SEC a new level of visibility into stock markets, helping it to catch manipulation and other market abuse, diagnose market crashes faster and improve market rules. Still, it represents a retreat from earlier plans because the system won’t require market participants to submit data in real time.
via SEC Arms Itself With Better Trade-Tracking System – WSJ.com
