Plug Power Skyrockets 80%—But Is A Crash Coming?

Plug Power’s share price has soared in recent weeks, surging 24% in a single session to $3.52 and nearly doubling over the past month. This sharp rally comes as optimism builds around improving hydrogen economics, strengthened policy tailwinds, and an upgraded long-term growth outlook. Investor sentiment has shifted following the company’s delivery of its first 10-megawatt GenEco electrolyzer array to a European customer and a positive re-rating of its revenue potential for 2035. Yet the rally has occurred despite continuing losses, heavy short interest of over 40% of the float, and the market’s expectation that the company will not achieve operating profitability until 2029. Plug Power’s second-quarter results highlighted a 21% year-over-year revenue increase and a sharp improvement in gross margins from -92% to -31% as it executed its Project Quantum Leap initiatives. The question for investors now is whether this market enthusiasm reflects a sustainable turnaround or a short squeeze against persistent structural challenges.