Plug Power slipped as a warrant resale filing offset news of record hydrogen output and recent share gains. Plug Power (PLUG -4.34%) closed at $2.53, down 4.7%. Among hydrogen and fuel-cell peers, Bloom Energy (BE -10.30%) closed at $77.38, down 10.3%, while FuelCell Energy (FCEL -5.42%) ended at $9.08, dropping 5.4%. The decline in Plug's stock price came after a strong August, when Plug's Georgia hydrogen plant delivered a record 324 metric tons with near-full uptime and availability, highlighting operational progress. For investors, the tension between improving production metrics and capital-structure questions makes upcoming earnings and margin guidance key markers.