Take a look at some of Friday's midday movers:
Big Lots - Shares rallied nearly 21 percent after the seller of discontinued and overproduced products reported adjusted fourth-quarter profit that topped expectations.
Safeway - Shares fell 2.7 percent as investors considered possible antitrust issues for Cerberus Capital Management's bid for the grocery-store operator.
Foot Locker - The retailer gained 7 percent after posting fourth-quarter adjusted profit that exceeded Wall Street estimates.
Prudential Financial - Shares of the financial-services provider rose 2.6 percent after Bank of America upgraded it to buy from neutral.
Cooper Companies - The medical-device company gained 5.8 percent after posting first-quarter earnings that exceeded estimates.
Smith Micro Software - Shares surged 52 percent after the software maker reporteda smaller-than-expected loss in the fourth quarter.
Novatel Wireless - Shares dropped 25 percent after the company missed earnings and revenue expectations for the fourth quarter and issued first-quarter guidance below estimates.
Korn/Ferry International - Shares jumped nearly 12 percent after the executive-search firm reported third-quarter earnings and revenue that beat Wall Street's expectations.
Alpha Natural Resources - Shares of the coal miner declined 9.8 percent after Bloomberg News reported the company stands to pay a $27.5 million fine under a proposed settlement with the government over toxic releases from mines in five states.
FireEye - Shares fell 9.5 percent after the network-security company priced the follow-on public offering of 14 million shares of its common stock at $82 a piece.
Skullcandy - The headphone maker rose 31 percent after it reported fourth-quarter earnings that beat analysts' estimates.
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—By CNBC's Kate Gibson.
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