U.S. stock exchanges must establish a uniform system for tracking...

U.S. stock exchanges must establish a uniform system for tracking all orders and trades under a rule approved Wednesday. The SEC said the requirement is intended to make it easier to investigate market disruptions, like a flash crash two years ago that sent the Dow Jones industrial average plummeting nearly 600 points in five minutes. (July 3, 2012) Credit: Getty Images

WASHINGTON -- U.S. stock exchanges must establish a uniform system for tracking all orders and trades under a rule approved Wednesday.

The Securities and Exchange Commission said the requirement is intended to make it easier for the government to investigate market disruptions, such as a flash crash two years ago that sent the Dow Jones industrial average plummeting nearly 600 points in five minutes.

The SEC voted to have all U.S. exchanges keep the same form of audit trails covering trading orders from start to routing to execution. At the present time, audit trails vary among exchanges. Regulators say that has made it more difficult to get their hands on current order data.

Regulators say the change will make it easier to pinpoint the causes of disruptions.

Newsday travel writer Scott Vogel took the ferry over to Block Island for a weekend of fun. Credit: Randee Daddona

Updated now Newsday travel writer Scott Vogel took the ferry over to Block Island for a weekend of fun.

Newsday travel writer Scott Vogel took the ferry over to Block Island for a weekend of fun. Credit: Randee Daddona

Updated now Newsday travel writer Scott Vogel took the ferry over to Block Island for a weekend of fun.

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