Why Plug Power Stock Popped on Monday

Shares of fuel cell pioneer Plug Power (NASDAQ: PLUG) jumped out of the gate on Monday, opening 4.1% above Friday's close at 9:30 a.m. ET, before starting to wobble lower. At the same time, rival fuel cell operator Ballard Power Systems (NASDAQ: BLDP) jumped 3.6% at the open, and -- in fits and starts -- proceeded to move even higher.

That doesn't make much sense, though.

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Source Fool.com