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

FUELCELL ENERGY INC is the larger business by last-quarter revenue ($55.0M vs $32.3M, roughly 1.7× RBB Bancorp). RBB Bancorp runs the higher net margin — 31.5% vs -54.3%, a 85.8% gap on every dollar of revenue. On growth, RBB Bancorp posted the faster year-over-year revenue change (12.6% vs 11.5%). RBB Bancorp produced more free cash flow last quarter ($42.6M vs $-23.9M). Over the past eight quarters, FUELCELL ENERGY INC's revenue compounded faster (81.6% CAGR vs 7.0%).

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.

RBB Bancorp is a US-based financial holding company that operates Royal Business Bank as its primary banking subsidiary. It caters mainly to Asian American communities, small and medium-sized enterprises, real estate investors, and retail clients, offering comprehensive commercial banking, consumer lending, deposit services, and wealth management solutions across branches in key US coastal metropolitan areas.

FCEL vs RBB — Head-to-Head

Bigger by revenue
FCEL
FCEL
1.7× larger
FCEL
$55.0M
$32.3M
RBB
Growing faster (revenue YoY)
RBB
RBB
+1.0% gap
RBB
12.6%
11.5%
FCEL
Higher net margin
RBB
RBB
85.8% more per $
RBB
31.5%
-54.3%
FCEL
More free cash flow
RBB
RBB
$66.5M more FCF
RBB
$42.6M
$-23.9M
FCEL
Faster 2-yr revenue CAGR
FCEL
FCEL
Annualised
FCEL
81.6%
7.0%
RBB

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
FCEL
FCEL
RBB
RBB
Revenue
$55.0M
$32.3M
Net Profit
$-29.9M
$10.2M
Gross Margin
-12.1%
Operating Margin
-51.5%
39.5%
Net Margin
-54.3%
31.5%
Revenue YoY
11.5%
12.6%
Net Profit YoY
27.9%
132.1%
EPS (diluted)
$-0.43
$0.59

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
RBB
RBB
Q4 25
$55.0M
$32.3M
Q3 25
$46.7M
$32.6M
Q2 25
$37.4M
$35.8M
Q1 25
$19.0M
$28.5M
Q4 24
$49.3M
$28.7M
Q3 24
$23.7M
$30.3M
Q2 24
$22.4M
$27.5M
Q1 24
$16.7M
$28.2M
Net Profit
FCEL
FCEL
RBB
RBB
Q4 25
$-29.9M
$10.2M
Q3 25
$-91.7M
$10.1M
Q2 25
$-38.0M
$9.3M
Q1 25
$-28.3M
$2.3M
Q4 24
$-41.4M
$4.4M
Q3 24
$-32.7M
$7.0M
Q2 24
$-32.1M
$7.2M
Q1 24
$-19.8M
$8.0M
Gross Margin
FCEL
FCEL
RBB
RBB
Q4 25
-12.1%
Q3 25
-11.0%
Q2 25
-25.2%
Q1 25
-27.4%
Q4 24
-22.1%
Q3 24
-26.2%
Q2 24
-31.6%
Q1 24
-70.2%
Operating Margin
FCEL
FCEL
RBB
RBB
Q4 25
-51.5%
39.5%
Q3 25
-204.0%
40.7%
Q2 25
-95.7%
36.1%
Q1 25
-172.9%
11.2%
Q4 24
-83.2%
17.6%
Q3 24
-141.9%
31.6%
Q2 24
-184.5%
35.6%
Q1 24
-254.5%
39.9%
Net Margin
FCEL
FCEL
RBB
RBB
Q4 25
-54.3%
31.5%
Q3 25
-196.1%
31.2%
Q2 25
-101.7%
26.1%
Q1 25
-149.1%
8.0%
Q4 24
-84.0%
15.3%
Q3 24
-137.8%
23.1%
Q2 24
-143.4%
26.4%
Q1 24
-118.6%
28.4%
EPS (diluted)
FCEL
FCEL
RBB
RBB
Q4 25
$-0.43
$0.59
Q3 25
$-3.78
$0.59
Q2 25
$-1.79
$0.52
Q1 25
$-1.42
$0.13
Q4 24
$-2.29
$0.26
Q3 24
$-1.99
$0.39
Q2 24
$-2.18
$0.39
Q1 24
$-1.37
$0.43

Balance Sheet & Financial Strength

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

Metric
FCEL
FCEL
RBB
RBB
Cash + ST InvestmentsLiquidity on hand
$278.1M
$212.3M
Total DebtLower is stronger
$103.8M
$119.9M
Stockholders' EquityBook value
$662.2M
$523.4M
Total Assets
$932.1M
$4.2B
Debt / EquityLower = less leverage
0.16×
0.23×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FCEL
FCEL
RBB
RBB
Q4 25
$278.1M
$212.3M
Q3 25
$174.7M
$234.9M
Q2 25
$177.0M
$191.9M
Q1 25
$208.4M
$238.8M
Q4 24
$257.3M
$257.7M
Q3 24
$267.2M
$349.4M
Q2 24
$260.1M
$252.8M
Q1 24
$297.5M
Total Debt
FCEL
FCEL
RBB
RBB
Q4 25
$103.8M
$119.9M
Q3 25
$106.4M
$119.8M
Q2 25
$109.4M
$119.7M
Q1 25
$112.3M
$119.6M
Q4 24
$115.7M
$119.5M
Q3 24
$112.7M
$119.4M
Q2 24
$116.2M
$119.3M
Q1 24
$107.2M
$119.2M
Stockholders' Equity
FCEL
FCEL
RBB
RBB
Q4 25
$662.2M
$523.4M
Q3 25
$556.2M
$514.3M
Q2 25
$609.2M
$517.7M
Q1 25
$635.2M
$510.3M
Q4 24
$656.9M
$507.9M
Q3 24
$675.8M
$509.7M
Q2 24
$639.8M
$511.3M
Q1 24
$663.9M
$514.0M
Total Assets
FCEL
FCEL
RBB
RBB
Q4 25
$932.1M
$4.2B
Q3 25
$830.5M
$4.2B
Q2 25
$883.8M
$4.1B
Q1 25
$907.5M
$4.0B
Q4 24
$944.1M
$4.0B
Q3 24
$948.9M
$4.0B
Q2 24
$916.8M
$3.9B
Q1 24
$923.2M
$3.9B
Debt / Equity
FCEL
FCEL
RBB
RBB
Q4 25
0.16×
0.23×
Q3 25
0.19×
0.23×
Q2 25
0.18×
0.23×
Q1 25
0.18×
0.23×
Q4 24
0.18×
0.24×
Q3 24
0.17×
0.23×
Q2 24
0.18×
0.23×
Q1 24
0.16×
0.23×

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
RBB
RBB
Operating Cash FlowLast quarter
$-22.9M
$43.4M
Free Cash FlowOCF − Capex
$-23.9M
$42.6M
FCF MarginFCF / Revenue
-43.4%
131.8%
Capex IntensityCapex / Revenue
1.8%
2.5%
Cash ConversionOCF / Net Profit
4.26×
TTM Free Cash FlowTrailing 4 quarters
$-143.9M
$73.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
FCEL
FCEL
RBB
RBB
Q4 25
$-22.9M
$43.4M
Q3 25
$-26.8M
$2.1M
Q2 25
$-29.9M
$21.7M
Q1 25
$-45.7M
$7.8M
Q4 24
$5.8M
$58.5M
Q3 24
$-63.4M
$24.5M
Q2 24
$-37.1M
$11.7M
Q1 24
$-58.3M
$4.8M
Free Cash Flow
FCEL
FCEL
RBB
RBB
Q4 25
$-23.9M
$42.6M
Q3 25
$-32.1M
$1.8M
Q2 25
$-35.2M
$21.6M
Q1 25
$-52.8M
$7.6M
Q4 24
$-4.7M
$57.7M
Q3 24
$-76.8M
$24.2M
Q2 24
$-50.3M
$11.5M
Q1 24
$-68.8M
$4.7M
FCF Margin
FCEL
FCEL
RBB
RBB
Q4 25
-43.4%
131.8%
Q3 25
-68.6%
5.4%
Q2 25
-94.0%
60.2%
Q1 25
-277.8%
26.7%
Q4 24
-9.5%
201.0%
Q3 24
-324.0%
80.0%
Q2 24
-224.5%
42.0%
Q1 24
-412.4%
16.6%
Capex Intensity
FCEL
FCEL
RBB
RBB
Q4 25
1.8%
2.5%
Q3 25
11.2%
1.1%
Q2 25
14.1%
0.3%
Q1 25
37.2%
0.6%
Q4 24
21.4%
2.7%
Q3 24
56.6%
0.8%
Q2 24
58.9%
0.5%
Q1 24
63.3%
0.5%
Cash Conversion
FCEL
FCEL
RBB
RBB
Q4 25
4.26×
Q3 25
0.21×
Q2 25
2.32×
Q1 25
3.39×
Q4 24
13.34×
Q3 24
3.50×
Q2 24
1.61×
Q1 24
0.60×

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%

RBB
RBB

Segment breakdown not available.

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