Take a look at some of Friday's midday movers:
Castlight Health - The provider of cloud-based software to help businesses control health-care costs more than doubled in price in its market debut, valuing the company at $3.4 billion.
Keurig Green Mountain - Shares rose 8.5 percent the specialty coffee company amended its deal with Starbucks, which will give up its exclusive license for Keurig's highest-end coffee packs. In return Keurig will give Starbucks a wider selection of its k-cups.
Ann - Shares rose 6.7 percent after the women's clothing retailer posted better-than-expected fourth-quarter earnings. The retailer, whose brands include Ann Taylor and Loft, also said it's eliminating 100 corporate positions.
Brown Shoe Co.- The footwear retailer rose 2.2 percent after reporting better-than-expected fourth-quarter earnings. Sales, however, fell short of estimates.
Coach - The upscale-handbag seller climbed 2.6 percent after positive comments from research firm ITG.
Power Plug - The provider of alternative-energy technology declined 6.3 percent after Cowen downgraded the stock to market perform from outperform.
Sirius XM Holdings - The satellite-radio company climbed 3.6 percent in heavy trading. Liberty Media pulled its bid to buy the company. BofA/Merrill Lynch upgraded the stock to neutral from buy. Shares of Liberty Media rose 8 percent.
Teva Pharmaceutical Industries - Shares gained 1.9 percent after JPMorgan upgraded the drug maker to neutral from under weight.
Home Depot and Lowe's Companies - Shares of both home-improvement retailers rose after Oppenheimer raised its price target to $93 from $86 on the former and upgraded the latter to outperform from perform and increased its price target to $57 from $50.
Zogenix - Shares slide 2.7 percent after the head of the U.S. Food and Drug Administration said the company's strong prescription drug Zohydo offered a "unique" option to treat pain, regardless of worries about potential abuse. Senator Joe Manchin of West Virginia, a state especially hard-hit by prescription drug abuse, has introduced legislation to ban Zohydo.
Cooper Tire and Rubber - Shares rose 7.4 percent after reporting better-than-expected fourth-quarter earnings.
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—By CNBC's Rich Fisherman.
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