FuelCell Energy Plunges 14% After a Dizzying Rally — Can AI Data Center Dreams Justify a Stock That More Than Doubled in Weeks?
Shares of FuelCell Energy cratered 14.5% to $20.86 on May 29, erasing nearly four days of gains in a single session as traders rushed to lock in profits from a rally that had more than doubled the stock since mid-April. No new negative headline triggered the slide — this was gravity reasserting itself over a name that had sprinted from around $6 to above $26 in roughly six weeks.
• The Rally Was Built on Hype First, Revenue Second
FCEL is up more than 300% since April lows, riding excitement around AI data center power demand and a clean energy revival.
The company plans to triple manufacturing capacity at its Connecticut facility from 100 to 350 megawatts, and its business development pipeline has grown 275% since February 2025, with the vast majority of that increase coming from data center customers. But pipeline interest is not the same as signed contracts. Investors will want to see whether data center operators sign binding, multi-year contracts with FuelCell as the company looks to prove itself.
• The Numbers Still Show a Money-Losing Business
Revenue sits near $158 million with a three-year growth rate of roughly 38%, but gross margin is negative 16% and the overall profit margin is roughly negative 109%.
Cash of more than $300 million and working capital above $400 million give FuelCell room to absorb ongoing operating losses and negative free cash flow near negative $34.7 million in the latest quarter. That cash cushion means no imminent survival risk, but it also means shareholders are funding a company that burns money every quarter.
• Wall Street's Price Targets Sit Far Below the Current Stock Price
According to four analysts, FCEL has a Hold consensus rating, with the average price target at just $8.31 — less than half of today's beaten-down price. At roughly 6.3 times sales and 1.5 times book value, the valuation is rich for a business with negative margins and heavy dilution risk.
• The Real Test Comes June 8 With Earnings
FuelCell announced it will release second-quarter 2026 results prior to market open on June 8. That report will reveal whether the AI-power narrative is translating into bookings and improving margins — or whether the stock is still trading on faith. The single biggest catalyst remains the AI infrastructure buildout, where hyperscaler power needs have outpaced grid capacity, with interconnection queues stretching five to seven years. If FuelCell can land even one marquee data center deal, the thesis gets real. Until then, today's sell-off is a reminder that momentum cuts both ways — especially for a stock trading three times above analysts' targets with no profits to anchor it.