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Side-by-side financial comparison of FUELCELL ENERGY INC (FCEL) and NATURAL ALTERNATIVES INTERNATIONAL INC (NAII). Click either name above to swap in a different company.

FUELCELL ENERGY INC is the larger business by last-quarter revenue ($55.0M vs $34.8M, roughly 1.6× NATURAL ALTERNATIVES INTERNATIONAL INC). NATURAL ALTERNATIVES INTERNATIONAL INC runs the higher net margin — -7.3% vs -54.3%, a 47.0% gap on every dollar of revenue. On growth, FUELCELL ENERGY INC posted the faster year-over-year revenue change (11.5% vs 2.1%). NATURAL ALTERNATIVES INTERNATIONAL INC produced more free cash flow last quarter ($-7.3M vs $-23.9M). Over the past eight quarters, FUELCELL ENERGY INC's revenue compounded faster (81.6% CAGR vs 17.7%).

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.

Natural Alternatives International, Inc. (NAI) is an American company based in Carlsbad, California which manufactures nutritional supplements such as Juice Plus. NAI was founded in 1980 by Mark A. LeDoux, and had 241 employees in 2007. NAI's manufacturing facilities are located in Vista, California, Switzerland and Japan.

FCEL vs NAII — Head-to-Head

Bigger by revenue
FCEL
FCEL
1.6× larger
FCEL
$55.0M
$34.8M
NAII
Growing faster (revenue YoY)
FCEL
FCEL
+9.4% gap
FCEL
11.5%
2.1%
NAII
Higher net margin
NAII
NAII
47.0% more per $
NAII
-7.3%
-54.3%
FCEL
More free cash flow
NAII
NAII
$16.6M more FCF
NAII
$-7.3M
$-23.9M
FCEL
Faster 2-yr revenue CAGR
FCEL
FCEL
Annualised
FCEL
81.6%
17.7%
NAII

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
FCEL
FCEL
NAII
NAII
Revenue
$55.0M
$34.8M
Net Profit
$-29.9M
$-2.6M
Gross Margin
-12.1%
7.2%
Operating Margin
-51.5%
-5.3%
Net Margin
-54.3%
-7.3%
Revenue YoY
11.5%
2.1%
Net Profit YoY
27.9%
-16.5%
EPS (diluted)
$-0.43
$-0.42

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
NAII
NAII
Q4 25
$55.0M
$34.8M
Q3 25
$46.7M
$37.7M
Q2 25
$37.4M
$33.9M
Q1 25
$19.0M
$28.8M
Q4 24
$49.3M
$34.1M
Q3 24
$23.7M
$33.1M
Q2 24
$22.4M
$29.5M
Q1 24
$16.7M
$25.1M
Net Profit
FCEL
FCEL
NAII
NAII
Q4 25
$-29.9M
$-2.6M
Q3 25
$-91.7M
$-291.0K
Q2 25
$-38.0M
$-7.2M
Q1 25
$-28.3M
$-2.2M
Q4 24
$-41.4M
$-2.2M
Q3 24
$-32.7M
$-2.0M
Q2 24
$-32.1M
$-1.9M
Q1 24
$-19.8M
$-1.6M
Gross Margin
FCEL
FCEL
NAII
NAII
Q4 25
-12.1%
7.2%
Q3 25
-11.0%
11.7%
Q2 25
-25.2%
10.4%
Q1 25
-27.4%
6.3%
Q4 24
-22.1%
4.9%
Q3 24
-26.2%
6.8%
Q2 24
-31.6%
4.8%
Q1 24
-70.2%
7.6%
Operating Margin
FCEL
FCEL
NAII
NAII
Q4 25
-51.5%
-5.3%
Q3 25
-204.0%
0.8%
Q2 25
-95.7%
-5.7%
Q1 25
-172.9%
-7.3%
Q4 24
-83.2%
-8.2%
Q3 24
-141.9%
-5.5%
Q2 24
-184.5%
-8.6%
Q1 24
-254.5%
-7.8%
Net Margin
FCEL
FCEL
NAII
NAII
Q4 25
-54.3%
-7.3%
Q3 25
-196.1%
-0.8%
Q2 25
-101.7%
-21.3%
Q1 25
-149.1%
-7.6%
Q4 24
-84.0%
-6.4%
Q3 24
-137.8%
-6.0%
Q2 24
-143.4%
-6.4%
Q1 24
-118.6%
-6.3%
EPS (diluted)
FCEL
FCEL
NAII
NAII
Q4 25
$-0.43
$-0.42
Q3 25
$-3.78
$-0.05
Q2 25
$-1.79
$-1.21
Q1 25
$-1.42
$-0.37
Q4 24
$-2.29
$-0.37
Q3 24
$-1.99
$-0.33
Q2 24
$-2.18
$-0.32
Q1 24
$-1.37
$-0.27

Balance Sheet & Financial Strength

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

Metric
FCEL
FCEL
NAII
NAII
Cash + ST InvestmentsLiquidity on hand
$278.1M
$3.8M
Total DebtLower is stronger
$103.8M
Stockholders' EquityBook value
$662.2M
$67.0M
Total Assets
$932.1M
$153.3M
Debt / EquityLower = less leverage
0.16×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FCEL
FCEL
NAII
NAII
Q4 25
$278.1M
$3.8M
Q3 25
$174.7M
$7.7M
Q2 25
$177.0M
$12.3M
Q1 25
$208.4M
$10.6M
Q4 24
$257.3M
$8.7M
Q3 24
$267.2M
$10.2M
Q2 24
$260.1M
$12.0M
Q1 24
$297.5M
$12.4M
Total Debt
FCEL
FCEL
NAII
NAII
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
NAII
NAII
Q4 25
$662.2M
$67.0M
Q3 25
$556.2M
$69.0M
Q2 25
$609.2M
$68.4M
Q1 25
$635.2M
$76.6M
Q4 24
$656.9M
$79.1M
Q3 24
$675.8M
$80.2M
Q2 24
$639.8M
$82.6M
Q1 24
$663.9M
$84.1M
Total Assets
FCEL
FCEL
NAII
NAII
Q4 25
$932.1M
$153.3M
Q3 25
$830.5M
$156.9M
Q2 25
$883.8M
$151.9M
Q1 25
$907.5M
$154.9M
Q4 24
$944.1M
$156.1M
Q3 24
$948.9M
$161.3M
Q2 24
$916.8M
$162.3M
Q1 24
$923.2M
$153.2M
Debt / Equity
FCEL
FCEL
NAII
NAII
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
NAII
NAII
Operating Cash FlowLast quarter
$-22.9M
$-6.3M
Free Cash FlowOCF − Capex
$-23.9M
$-7.3M
FCF MarginFCF / Revenue
-43.4%
-20.9%
Capex IntensityCapex / Revenue
1.8%
2.7%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-143.9M
$-5.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FCEL
FCEL
NAII
NAII
Q4 25
$-22.9M
$-6.3M
Q3 25
$-26.8M
$-4.0M
Q2 25
$-29.9M
$3.3M
Q1 25
$-45.7M
$6.0M
Q4 24
$5.8M
$37.0K
Q3 24
$-63.4M
$-3.4M
Q2 24
$-37.1M
$-2.7M
Q1 24
$-58.3M
$-3.6M
Free Cash Flow
FCEL
FCEL
NAII
NAII
Q4 25
$-23.9M
$-7.3M
Q3 25
$-32.1M
$-5.1M
Q2 25
$-35.2M
$1.9M
Q1 25
$-52.8M
$5.2M
Q4 24
$-4.7M
$-1.0M
Q3 24
$-76.8M
$-3.7M
Q2 24
$-50.3M
$-3.8M
Q1 24
$-68.8M
$-3.9M
FCF Margin
FCEL
FCEL
NAII
NAII
Q4 25
-43.4%
-20.9%
Q3 25
-68.6%
-13.4%
Q2 25
-94.0%
5.6%
Q1 25
-277.8%
18.0%
Q4 24
-9.5%
-3.0%
Q3 24
-324.0%
-11.3%
Q2 24
-224.5%
-12.7%
Q1 24
-412.4%
-15.5%
Capex Intensity
FCEL
FCEL
NAII
NAII
Q4 25
1.8%
2.7%
Q3 25
11.2%
2.7%
Q2 25
14.1%
4.3%
Q1 25
37.2%
2.8%
Q4 24
21.4%
3.1%
Q3 24
56.6%
0.9%
Q2 24
58.9%
3.5%
Q1 24
63.3%
1.1%

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%

NAII
NAII

Private Label Contract Manufacturing$32.8M94%
Patent And Trademark Licensing$2.0M6%

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