Take a look at some of Monday's midday movers:
Celgene shares were higher after the company provided an updated long-term earnings guidance at the JPMorgan Healthcare Conference. The biopharma company now says that it expects a compound sales growth rate of 19 percent over the next five years.
Netflix rose after announcing plans to carry some Warner Bros. shows. Shares of the video-streaming service surged above $100 for first time since April 23rd, 2012.
Tesoro sank after the refiner filed an amended credit agreement with the SEC to borrow up to $4 billion. The refiner was also downgraded to "sector perform" from "focus stock" at Howard Weil.
Vivus moved higher after the company said that sales of its obesity drug, Qsymia increased 68 percent month-over-month.
Micron Technology was in the black after Citi added the chipmaker to its "top picks" list, citing recovering DRAM prices, falling inventory levels and stabilizing demand.
And First Solar was the biggest laggard on the S&P 500, giving back some recent gains.
—By CNBC's Lori Spechler
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