3 Biotech Stocks That Soared This Week: Are They Buys?

3 Biotech Stocks That Soared This Week: Are They Buys?

Earnings season continued to be in high gear this week. Positive quarterly results helped propel several biotech stocks higher over the last few days. Others jumped because of good news for their pipelines.

Three biotech stocks that especially soared this week were Nektar Therapeutics (NASDAQ: NKTR), Sage Therapeutics (NASDAQ: SAGE), and Valeant Pharmaceuticals (NYSE: VRX). Here's what lit a fire under these stocks -- and, more importantly, whether they're smart picks for investors after the huge gains.

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Source: Fool.com