Stocks that moved substantially or traded heavily Wednesday on the New York Stock Exchange and the Nasdaq Stock Market:
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JPMorgan Chase & Co., down $2.03 to $56.81
The bank reported a 7 percent drop in fourth-quarter profit partly because of legal expenses, falling short of expectations.
GameStop Corp., up $3.44 to $36.21
The video game retailer reported a boost in sales during the holiday period and expects strong demand into the first quarter.
Freeport-McMoRan Inc., down $2.30 to $18.74
The mineral and energy mining company's stock fell as copper prices dropped to their lowest point in more than five years.
General Motors Co., down 95 cents to $34.30
The auto company said it expects pretax profit to rise this year and predicted improved automotive results.
St. Jude Medical Inc., up $1.77 to $67.56
The medical device maker reported preliminary revenue figures in line with its prior guidance and reaffirmed its profit outlook.
Ziopharm Oncology Inc., up $3.13 to $8.87
The biotech company entered a licensing deal with The University of Texas MD Anderson Center for potential cancer treatments.
Tesla Motors Inc., down $11.56 to $192.69
The electric auto company's CEO, Elon Musk, told an auto industry gathering that the company will not be profitable until 2020.
Linear Technology Corp., up 45 cents to $45.62
The circuit maker reported better-than-expected fiscal second-quarter profit, though its revenue fell short of forecasts.