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Side-by-side financial comparison of FUELCELL ENERGY INC (FCEL) and NAPCO SECURITY TECHNOLOGIES, INC (NSSC). Click either name above to swap in a different company.

FUELCELL ENERGY INC is the larger business by last-quarter revenue ($55.0M vs $48.2M, roughly 1.1× NAPCO SECURITY TECHNOLOGIES, INC). NAPCO SECURITY TECHNOLOGIES, INC runs the higher net margin — 28.0% vs -54.3%, a 82.3% gap on every dollar of revenue. On growth, NAPCO SECURITY TECHNOLOGIES, INC posted the faster year-over-year revenue change (12.2% vs 11.5%). NAPCO SECURITY TECHNOLOGIES, INC produced more free cash flow last quarter ($14.5M vs $-23.9M). Over the past eight quarters, FUELCELL ENERGY INC's revenue compounded faster (81.6% CAGR vs -1.1%).

FuelCell Energy, Inc. is a publicly traded fuel cell company headquartered in Danbury, Connecticut. It designs, manufactures, operates and services power plants based on molten carbonate fuel cells.

Napco Security Technologies, Inc. was set up in 1969 and now is based in Amityville, New York. The company focuses on security products, such as electronic locking devices, alarm systems, and building access control systems. The company was formerly known as Napco Security Systems, Inc.

FCEL vs NSSC — Head-to-Head

Bigger by revenue
FCEL
FCEL
1.1× larger
FCEL
$55.0M
$48.2M
NSSC
Growing faster (revenue YoY)
NSSC
NSSC
+0.7% gap
NSSC
12.2%
11.5%
FCEL
Higher net margin
NSSC
NSSC
82.3% more per $
NSSC
28.0%
-54.3%
FCEL
More free cash flow
NSSC
NSSC
$38.4M more FCF
NSSC
$14.5M
$-23.9M
FCEL
Faster 2-yr revenue CAGR
FCEL
FCEL
Annualised
FCEL
81.6%
-1.1%
NSSC

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
FCEL
FCEL
NSSC
NSSC
Revenue
$55.0M
$48.2M
Net Profit
$-29.9M
$13.5M
Gross Margin
-12.1%
58.6%
Operating Margin
-51.5%
30.6%
Net Margin
-54.3%
28.0%
Revenue YoY
11.5%
12.2%
Net Profit YoY
27.9%
29.0%
EPS (diluted)
$-0.43
$0.38

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
FCEL
FCEL
NSSC
NSSC
Q4 25
$55.0M
$48.2M
Q3 25
$46.7M
$49.2M
Q2 25
$37.4M
$50.7M
Q1 25
$19.0M
$44.0M
Q4 24
$49.3M
$42.9M
Q3 24
$23.7M
$44.0M
Q2 24
$22.4M
$50.3M
Q1 24
$16.7M
$49.3M
Net Profit
FCEL
FCEL
NSSC
NSSC
Q4 25
$-29.9M
$13.5M
Q3 25
$-91.7M
$12.2M
Q2 25
$-38.0M
$11.6M
Q1 25
$-28.3M
$10.1M
Q4 24
$-41.4M
$10.5M
Q3 24
$-32.7M
$11.2M
Q2 24
$-32.1M
$13.5M
Q1 24
$-19.8M
$13.2M
Gross Margin
FCEL
FCEL
NSSC
NSSC
Q4 25
-12.1%
58.6%
Q3 25
-11.0%
56.6%
Q2 25
-25.2%
52.8%
Q1 25
-27.4%
57.2%
Q4 24
-22.1%
57.0%
Q3 24
-26.2%
55.9%
Q2 24
-31.6%
55.3%
Q1 24
-70.2%
53.8%
Operating Margin
FCEL
FCEL
NSSC
NSSC
Q4 25
-51.5%
30.6%
Q3 25
-204.0%
27.7%
Q2 25
-95.7%
23.8%
Q1 25
-172.9%
25.4%
Q4 24
-83.2%
26.0%
Q3 24
-141.9%
26.9%
Q2 24
-184.5%
27.7%
Q1 24
-254.5%
29.4%
Net Margin
FCEL
FCEL
NSSC
NSSC
Q4 25
-54.3%
28.0%
Q3 25
-196.1%
24.7%
Q2 25
-101.7%
22.9%
Q1 25
-149.1%
23.0%
Q4 24
-84.0%
24.4%
Q3 24
-137.8%
25.4%
Q2 24
-143.4%
26.9%
Q1 24
-118.6%
26.8%
EPS (diluted)
FCEL
FCEL
NSSC
NSSC
Q4 25
$-0.43
$0.38
Q3 25
$-3.78
$0.34
Q2 25
$-1.79
$0.33
Q1 25
$-1.42
$0.28
Q4 24
$-2.29
$0.28
Q3 24
$-1.99
$0.30
Q2 24
$-2.18
$0.36
Q1 24
$-1.37
$0.36

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
FCEL
FCEL
NSSC
NSSC
Cash + ST InvestmentsLiquidity on hand
$278.1M
$115.4M
Total DebtLower is stronger
$103.8M
Stockholders' EquityBook value
$662.2M
$184.8M
Total Assets
$932.1M
$212.8M
Debt / EquityLower = less leverage
0.16×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FCEL
FCEL
NSSC
NSSC
Q4 25
$278.1M
$115.4M
Q3 25
$174.7M
$105.8M
Q2 25
$177.0M
$99.2M
Q1 25
$208.4M
$89.3M
Q4 24
$257.3M
$99.2M
Q3 24
$267.2M
$91.3M
Q2 24
$260.1M
$70.7M
Q1 24
$297.5M
$60.9M
Total Debt
FCEL
FCEL
NSSC
NSSC
Q4 25
$103.8M
Q3 25
$106.4M
Q2 25
$109.4M
Q1 25
$112.3M
Q4 24
$115.7M
Q3 24
$112.7M
Q2 24
$116.2M
Q1 24
$107.2M
Stockholders' Equity
FCEL
FCEL
NSSC
NSSC
Q4 25
$662.2M
$184.8M
Q3 25
$556.2M
$176.1M
Q2 25
$609.2M
$168.6M
Q1 25
$635.2M
$161.5M
Q4 24
$656.9M
$174.2M
Q3 24
$675.8M
$178.6M
Q2 24
$639.8M
$178.9M
Q1 24
$663.9M
$168.2M
Total Assets
FCEL
FCEL
NSSC
NSSC
Q4 25
$932.1M
$212.8M
Q3 25
$830.5M
$206.0M
Q2 25
$883.8M
$198.1M
Q1 25
$907.5M
$190.9M
Q4 24
$944.1M
$202.7M
Q3 24
$948.9M
$209.9M
Q2 24
$916.8M
$207.8M
Q1 24
$923.2M
$194.8M
Debt / Equity
FCEL
FCEL
NSSC
NSSC
Q4 25
0.16×
Q3 25
0.19×
Q2 25
0.18×
Q1 25
0.18×
Q4 24
0.18×
Q3 24
0.17×
Q2 24
0.18×
Q1 24
0.16×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
FCEL
FCEL
NSSC
NSSC
Operating Cash FlowLast quarter
$-22.9M
$15.1M
Free Cash FlowOCF − Capex
$-23.9M
$14.5M
FCF MarginFCF / Revenue
-43.4%
30.1%
Capex IntensityCapex / Revenue
1.8%
1.2%
Cash ConversionOCF / Net Profit
1.12×
TTM Free Cash FlowTrailing 4 quarters
$-143.9M
$53.7M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FCEL
FCEL
NSSC
NSSC
Q4 25
$-22.9M
$15.1M
Q3 25
$-26.8M
$11.6M
Q2 25
$-29.9M
$14.6M
Q1 25
$-45.7M
$13.4M
Q4 24
$5.8M
$13.5M
Q3 24
$-63.4M
$12.0M
Q2 24
$-37.1M
$14.3M
Q1 24
$-58.3M
$12.3M
Free Cash Flow
FCEL
FCEL
NSSC
NSSC
Q4 25
$-23.9M
$14.5M
Q3 25
$-32.1M
$11.4M
Q2 25
$-35.2M
$14.4M
Q1 25
$-52.8M
$13.3M
Q4 24
$-4.7M
$12.4M
Q3 24
$-76.8M
$11.3M
Q2 24
$-50.3M
$13.8M
Q1 24
$-68.8M
$12.0M
FCF Margin
FCEL
FCEL
NSSC
NSSC
Q4 25
-43.4%
30.1%
Q3 25
-68.6%
23.3%
Q2 25
-94.0%
28.4%
Q1 25
-277.8%
30.3%
Q4 24
-9.5%
28.8%
Q3 24
-324.0%
25.8%
Q2 24
-224.5%
27.4%
Q1 24
-412.4%
24.3%
Capex Intensity
FCEL
FCEL
NSSC
NSSC
Q4 25
1.8%
1.2%
Q3 25
11.2%
0.4%
Q2 25
14.1%
0.5%
Q1 25
37.2%
0.1%
Q4 24
21.4%
2.6%
Q3 24
56.6%
1.5%
Q2 24
58.9%
1.1%
Q1 24
63.3%
0.7%
Cash Conversion
FCEL
FCEL
NSSC
NSSC
Q4 25
1.12×
Q3 25
0.96×
Q2 25
1.26×
Q1 25
1.32×
Q4 24
1.29×
Q3 24
1.08×
Q2 24
1.06×
Q1 24
0.94×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

FCEL
FCEL

Other$30.0M55%
Electricity Generation$12.2M22%
Services$7.3M13%
Advanced Technologies$5.5M10%

NSSC
NSSC

Segment breakdown not available.

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