Shares closed at $3.13 on Thursday, marking a second straight daily loss as the Nasdaq Composite fell 0.13% and the Dow Jones Industrial Average dropped 0.63%.
The stock finished 31.66% below its 52-week high of $4.58 reached on 6 October and lagged peers including Air Products, Procter & Gamble and Ballard Power Systems.
Trading volume reached 78.8 million shares, above the 50-day average of 77.7 million, indicating heavier-than-usual activity during the broad market sell-off.
With a key earnings report just days away, can Plug Power prove its turnaround is real or is more pain coming for investors?
As competitors gain ground, is Plug Power's 'do-it-all' hydrogen strategy a winning bet or a fatal flaw?