Going against prevailing market trends can be tricky, but it can also be a rewarding strategy. Uncovering gems in the stock market that most other investors are ignoring -- or actively avoiding -- can be highly profitable in the long term. Of course, scooping up shares of beaten-down stocks comes with risks. These companies are often struggling, financially or otherwise, and there is no guarantee that they will turn things around.

That's why it's essential to proceed with extreme caution when considering such stocks. And for investors comfortable with above-average risk and volatility, here are two biotech companies that have been hammered in recent years but that could stage a strong comeback in the coming months: bluebird bio (NASDAQ: BLUE) and Provention Bio (NASDAQ: PRVB). 

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Source Fool.com