Take a look at some of Thursday's midday movers:
Netflix lost ground again, off more than 20 percent from its highs last month, falling 19 out of the last 22 sessions.
Tarena International had a successful market debut after the Chinese IT services educator priced 15.3 million shares at $9.
Corium International fell in its market debut after the drug delivery systems provider priced 6.5 million shares at $8.
Pandora fell after initially opening higher as the online radio company announced listeners increased in March.
Vivus lost ground after Piper Jaffray downgraded the stock to "underweight" and reduced its price target to $3 from $8, citing a bearish outlook for its anti-obesity drug.
Liquidity Services slid after the company withdrew from Defense Logistics Agency bidding auction to purchase, manage and sell surplus assets of the Department of Defense.
Twitter moved lower despite the Turkish government saying it is restoring access to the site, a day after a high court ruling against the ban.
Intel moved higher after Piper Jaffray upgraded the stock to "overweight" from "neutral" with a price target of $30, citing PC market stabilization.
CACI International fell after the company cut its fiscal 2014 earnings and sales outlook.
Walgreen gained ground after the drugstore chain said March sales grew 4.5 percent from a year ago.
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