Fuel-Cell Stocks Slide: Bloom Energy Falls About 13%, Plug Power About 4%

Bloom Energy's stock plummeted 13-43% and 15%, while Plug Power fell 4%, amid doubts on their revenue strategies. FuelCell Energy also declined, as investors weigh in on the sector's performance.

BE shares fell sharply as the fuel-cell sector unwound a large part of its 2026 rally, with reporting pointing to a roughly 13% single-day decline for Bloom Energy. Coverage citing a 43% figure appears to reflect a different timeframe or a data-aggregation artifact rather than a single trading session move, and that number could not be independently confirmed; it should be treated as unverified pending a primary source.

PLUG also declined, off roughly 4% the same day, extending a stretch of choppy trading for hydrogen and fuel-cell names. The pullback follows a steep run-up earlier in 2026, when Bloom Energy shares had been up well over 100% year to date on optimism about fuel cells' role in powering AI data centers, making the group a natural target for profit-taking once sentiment cooled.

Beyond profit-taking, the selloff has coincided with renewed scrutiny of sector fundamentals: a short-seller report questioning Bloom Energy's supply-chain and production-capacity disclosures surfaced earlier in July and has been linked to a securities-related investigation into the company. FuelCell Energy also traded lower amid the broader group weakness. None of the three companies is currently profitable, which continues to leave fuel-cell equities more sensitive than most to swings in sentiment around the AI-power growth narrative.