Market Insider

Midday movers: Twitter, Alcoa, Conns & more

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Take a look at some of Thursday's midday movers: - The online retailer continued to fall, along and other momentum stocks, including Netflix,, Tesla Motors and Facebook. All are down more than 17 percent from their highs.

King Digital Entertainment - Shares fell for a second session after its market debut Wednesday. The mobile-game maker was the worst performing IPO this year.

Square 1 Financial - rose 12 percent in its market debut after pricing $5.7 million shares at $18.

TriNet Group - soared 16 percent in its first day of trading after the provider of payroll services offered 15 million shares at $16 a share.

Bitcoin Shop - The Bitcoin-only online retailer fell on reports China's central bank has ordered domestic banks to stop doing business with websites that trade in the digital currency.

GameStop - The seller of video-game products fell after reporting weaker-than-expected fourth-quarter earnings.

Twitter - The social-media company rose after entering a data-sharing partnership with Billboard.

Alcoa - The aluminum maker hit a two-and-a-half-year high after a favorable U.K. ruling that halted the London Metals Exchange's plans to cut industrial metal logjams in warehouses. The ruling was seen as supportive of aluminum prices.

Clovis Oncology - Shares experienced a roller coaster morning after it posted positive findings from a study of its lung-cancer treatment.

Conns - The specialty retailer gained after reporting earnings rose 57 percent in the fourth quarter.

Spherix - fell after it said it was suing Cisco Systems, alleging of patent infringement.

Fred's - The specialty retailer declined after reporting fourth-quarter earnings below estimates.

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—By CNBC's Rich Fisherman.

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