With earnings season in full swing, stocks across sectors are making some dramatic moves. Yet, when stocks that were languishing in recent weeks clock big gains in just about five days, it pays to find out whether it's a dead-cat bounce or a sustainable recovery. Take clean energy stocks, for example. Here are three top-performing stocks from the industry and the percentage by which they rose at their highest points in five days as of 2 p.m. ET on Friday, according to data provided by S&P Global Market Intelligence:

The point to note is that beyond earnings, there was one huge common link among all three stocks that sent them flying. In fact, investors and analysts alike believe this could be the biggest catalyst yet for these renewable energy stocks.

Both Plug Power and Bloom Energy reported their second-quarter numbers this week. Both companies missed analysts' estimates, but that didn't stop the hydrogen stocks from surging. There's a reason why.

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Source Fool.com