The CBOE Stock Exchange invoked a government-sanctioned rule to unwind 18 trades made in the stock of Chicago’s Accenture Plc that all took place within a few minutes Thursday afternoon at the price of a penny per share. Accenture closed down $1.08 at $41.09, and no news from the company would have justified those rock-bottom trades.
Traders in the S&P 500 pit at the Chicago Board Options Exchange on May 6, 2010. (Terrence Antonio James/Chicago Tribune)
By Greg Burns | One of the wildest 20 minutes in Wall Street history spilled into Chicago’s major markets Thursday, prompting one exchange to declare a series of trades “clearly erroneous,” and another to suggest that a hot rumor was wrong.
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