Joyce: It's `Back to Business' for Knight

Aug. 14 (Bloomberg) -- In today's "Word on the Street," Bloomberg's Stephanie Ruhle reports on Knight Capital's return to business nearly two weeks after losing $440 million because of a trading glitch caused by software. She speaks on Bloomberg Television's "Market Makers."

S&P 500 Winners and Losers for 03/22
34:44 - These are today's winners and losers from the S&P 500. (Source: Bloomberg)
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