FuelCell Energy (FCEL) stock is back in the spotlight after the company announced a new partnership with Siemens (SIEGY). Investors wasted little time rewarding the company; shares surged roughly 2% following the announcement on July 9 as Wall Street viewed the agreement as another step toward FuelCell's ambitions in the fast-growing AI data-center market. The rally also extended what has already been an extraordinary run for FCEL stock, although shares are now falling again today.
Over the past 12 months, FuelCell shares have climbed about 260%. The stock has also climbed 164% in 2026 alone as investors increasingly bet that demand for large-scale power solutions for AI infrastructure could transform the company's long-term outlook.
