Stocks that moved substantially or traded heavily Friday on the New York Stock Exchange and the Nasdaq Stock Market:
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Gap Inc., up $2.37 to $42.57
The clothing retailer reported a 3 percent boost in second-quarter sales and forecast quarterly profit above Wall Street expectations.
Post Holdings Inc., down $7.08 to $37.43
The breakfast cereal maker reported a third-quarter loss on expenses and said it will buy American Blanching Co. for $128 million.
Lions Gate Entertainment Corp., up $2.28 to $32.63
The film and television production company reported a jump in quarterly profit on lower expenses, topping Wall Street expectations.
CBS Corp., up $2.33 to $59.23
The media company reported a drop in quarterly profit and revenue, but the financial results still beat Wall Street expectations.
Nvidia Corp., up $1.54 to $19
The visual technology computer chip maker reported a boost in quarterly profit and revenue, beating Wall Street expectations.
Tekmira Pharmaceuticals Corp., up $6.43 to $20.70
U.S. health authorities eased safety restrictions on the company's experimental drug to treat Ebola.
MercadoLibre Inc., up $13.41 to $105.85
The e-commerce technology company reported a boost in revenue and its quarterly financial results beat Wall Street expectations.
Volcano Corp., down $3.22 to $12.56
The medical technology company plans to divest its Axsun Technologies unit and it will settle a lawsuit with St. Jude Medical.