Investor's Business Daily - Federal regulators increased the number of stocks covered by new "circuit breakers" that can pause volatile trading, a program created in response to the panicked May 6 market plunge. The SEC expanded the pilot program from stocks listed on the Standard & Poor's 500 index to all stocks in the Russell 1000 index. The program, which began in mid-June, briefly halts trading of stocks that rise or fall 10% within a 5-minute span.
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