Furiex Pharmaceuticals - Shares surged after it reported its experimental drug to treat a form of irritable bowel syndrome met main goals in a late-stage study.
Zynga - The developer of online games gained after UBS upgraded the stock to buy from neutral.
J.C. Penney - The department-store operator's shares slid, reversing a rise in premarket trade. It reported a modest gain in quarterly comparable sales but offered no details on its gross profit margin. JPMorgan and Sterne Agee cut the target price of the stock.
Gannett - Shares of the media company edged higher after it reported quarterly revenue in line with expectations
Fossil Group - Shares of the accessories retailer rose along with Michael Kors Holdings after the latter reported a jump in third-quarter profit.
Gilead Sciences - The biopharmaceutical company gained after Baird upgraded the stock to outperform from neutral.
McGraw Hill Financial - The parent company of ratings agency Standard & Poor's climbed after its fourth-quarter results and forecast topped estimates.
Delphi Automotive - The company's shares climbed after it reported better-than-expected quarterly profit.
Eaton - The diversified manufacturer declined after reporting disappointing quarterly profit margins and revenue.
UBS - The Swiss bank rose after swinging to a fourth-quarter profit and increasing its dividend.
(Read More: See CNBC's Market Insider Blog)
—By CNBC's Rich Fisherman.
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