Key Points Plug Power stock soared 16% this afternoon on no news. The hydrogen fuel cell start-up is not profitable -- and never has been. 10 stocks we like better than Plug Power › Shares of hydrogen fuel cell company Plug Power (NASDAQ: PLUG) soared 16.1% through 1 p.m. ET Wednesday, but here's the thing: There doesn't seem to be any good reason for the rise. Image source: Getty Images. Introducing Plug Power Plug Power bills itself as "a first mover in the [hydrogen] industry," manufacturing ...