Shares of Plug Power and Take-Two Interactive dropped today. Should investors hold on to these stocks?

In the "Movers and Shakers" segment of today's Investor Beat, Chris Hill and Fool analyst Jason Moser discuss the two companies' stock-price dips. 

First, Chris explains that although Plug Power was up yesterday in advance of its earnings, today's quarterly report was worse than expected. Jason finds the report unexpected; he likens Plug Power's stock price and company features to Tesla Motors, concluding that the fuel-cell manufacturer is lacking, yet worth a watch.

Chris and Jason then jump into Take-Two Interactive's fall after the video game company lowered its guidance for its fiscal 2015. Jason thinks even the launch of Grand Theft Auto VI might not be enough to pick this stock up. He compares Take-Two to Activision Blizzard to create a greater picture of gaming companies on the stock market.