Carbonate fuel cell technology developer FuelCell Energy (NASDAQ: FCEL) fell short of the market’s revenue expectations in Q1 CY2026, with sales falling 4.9% year on year to $35.59 million. Its non-GAAP loss of $0.53 per share was 21.8% below analysts’ consensus estimates.

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________________________1 Pipeline consists of ongoing commercial discussions that range from solutions discussion through contract negotiation and does not represent signed agreements. There can be no assurance that these discussions will result in executed contracts or actual sales. “This past quarter reflected strong commercial momentum and disciplined operational execution across the business, including continued progress on our data center strategy,” said Jason Few, President and CEO of FuelCell Energy.

Company Overview

Founded in 1969, FuelCell Energy (NASDAQ: FCEL) is a leading manufacturer and developer of carbonate fuel cell technology for stationary power generation.

Revenue Growth

A company’s long-term performance is an indicator of its overall quality. Any business can put up a good quarter or two, but many enduring ones grow for years. Over the last five years, FuelCell Energy grew its sales at an incredible 21.1% compounded annual growth rate. Its growth surpassed the average industrials company and shows its offerings resonate with customers, a great starting point for our analysis.

We at StockStory place the most emphasis on long-term growth, but within industrials, a half-decade historical view may miss cycles, industry trends, or a company capitalizing on catalysts such as a new contract win or a successful product line. FuelCell Energy’s annualized revenue growth of 38.8% over the last two years is above its five-year trend, suggesting its demand was strong and recently accelerated.

FuelCell Energy also reports its backlog, or the value of its outstanding orders that have not yet been executed or delivered. FuelCell Energy’s backlog reached $1.14 billion in the latest quarter and averaged 5.5% year-on-year growth over the last two years. Because this number is lower than its revenue growth, we can see the company fulfilled orders at a faster rate than it added new orders to the backlog. This implies FuelCell Energy was operating efficiently but raises questions about the health of its sales pipeline.

This quarter, FuelCell Energy missed Wall Street’s estimates and reported a rather uninspiring 4.9% year-on-year revenue decline, generating $35.59 million of revenue.

Looking ahead, sell-side analysts expect revenue to grow 18.7% over the next 12 months, a deceleration versus the last two years. Despite the slowdown, this projection is admirable and implies the market is baking in success for its products and services.

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Operating Margin

Operating margin is a key measure of profitability. Think of it as net income - the bottom line - excluding the impact of taxes and interest on debt, which are less connected to business fundamentals.

FuelCell Energy’s high expenses have contributed to an average operating margin of negative 122% over the last five years. Unprofitable industrials companies require extra attention because they could get caught swimming naked when the tide goes out.

Analyzing the trend in its profitability, FuelCell Energy’s operating margin decreased by 16.3 percentage points over the last five years. This raises questions about the company’s expense base because its revenue growth should have given it leverage on its fixed costs, resulting in better economies of scale and profitability. FuelCell Energy’s performance was poor no matter how you look at it - it shows that costs were rising and it couldn’t pass them onto its customers.

In Q1, FuelCell Energy generated a negative 219% operating margin.

Earnings Per Share

Revenue trends explain a company’s historical growth, but the long-term change in earnings per share (EPS) points to the profitability of that growth — for example, a company could inflate its sales through excessive spending on advertising and promotions.

Although FuelCell Energy’s full-year earnings are still negative, it reduced its losses and improved its EPS by 18.6% annually over the last five years. The next few quarters will be critical for assessing its long-term profitability. We hope to see an inflection point soon.

Like with revenue, we analyze EPS over a shorter period to see if we are missing a change in the business.

For FuelCell Energy, its two-year annual EPS growth of 40.6% was higher than its five-year trend. We love it when earnings improve, but a caveat is that its EPS is still in the red.

In Q1, FuelCell Energy reported adjusted EPS of negative $0.53, up from negative $1.75 in the same quarter last year. Despite growing year on year, this print missed analysts’ estimates. Over the next 12 months, Wall Street expects FuelCell Energy to improve its earnings losses. Analysts forecast its full-year EPS will improve from negative $3.00 to negative $1.93.

Key Takeaways from FuelCell Energy’s Q1 Results

We struggled to find many positives in these results. Its revenue missed and its adjusted operating income fell short of Wall Street’s estimates. Overall, this was a softer quarter. The stock traded down 7.7% to $15.95 immediately after reporting.

FuelCell Energy’s latest earnings report disappointed. One quarter doesn’t define a company’s quality, so let’s explore whether the stock is a buy at the current price. What happened in the latest quarter matters, but not as much as longer-term business quality and valuation, when deciding whether to invest in this stock. We cover that in our actionable full research report which you can read here (it’s free).