By The Associated Press
NEW TRACKING SYSTEM: U.S. securities exchanges and markets must establish a uniform system for tracking all orders and trades under a rule approved Wednesday.
PROBING BREAKDOWNS: The Securities and Exchange Commission says the requirement is intended to make it easier for the government to investigate market disruptions, like the flash crash two years ago that sent the Dow Jones industrial average down nearly 600 points in five minutes.
AUDIT TRAILS: Exchanges and trading platforms will be required to keep the same form of audit trails. At the present time, audit trails vary among exchanges.
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