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Side-by-side financial comparison of OPAL Fuels Inc. (OPAL) and OCTAVE SPECIALTY GROUP INC (OSG). Click either name above to swap in a different company.

OPAL Fuels Inc. is the larger business by last-quarter revenue ($88.4M vs $66.9M, roughly 1.3× OCTAVE SPECIALTY GROUP INC). OPAL Fuels Inc. runs the higher net margin — 18.3% vs -73.8%, a 92.1% gap on every dollar of revenue. On growth, OPAL Fuels Inc. posted the faster year-over-year revenue change (18.7% vs 2.6%). Over the past eight quarters, OPAL Fuels Inc.'s revenue compounded faster (17.6% CAGR vs 16.2%).

OPAL Fuels Inc. is a North American energy company focused on producing and distributing low-carbon renewable natural gas (RNG). It captures methane from landfills, dairy operations and other organic waste streams to produce RNG, which is mainly supplied to heavy-duty transportation fleets, commercial logistics operators and public transport entities to help reduce their greenhouse gas emissions.

Octave Specialty Group Inc. is a specialty insurance holding company that provides tailored property and casualty insurance products. Its core business focuses on excess and surplus lines, catering to commercial and individual clients across primary North American markets with customized risk coverage solutions.

OPAL vs OSG — Head-to-Head

Bigger by revenue
OPAL
OPAL
1.3× larger
OPAL
$88.4M
$66.9M
OSG
Growing faster (revenue YoY)
OPAL
OPAL
+16.2% gap
OPAL
18.7%
2.6%
OSG
Higher net margin
OPAL
OPAL
92.1% more per $
OPAL
18.3%
-73.8%
OSG
Faster 2-yr revenue CAGR
OPAL
OPAL
Annualised
OPAL
17.6%
16.2%
OSG

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
OPAL
OPAL
OSG
OSG
Revenue
$88.4M
$66.9M
Net Profit
$16.2M
$-29.7M
Gross Margin
Operating Margin
7.5%
-76.7%
Net Margin
18.3%
-73.8%
Revenue YoY
18.7%
2.6%
Net Profit YoY
401.5%
-41.7%
EPS (diluted)
$0.08
$-0.82

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
OPAL
OPAL
OSG
OSG
Q4 25
$88.4M
$66.9M
Q3 25
$77.9M
$66.6M
Q2 25
$77.4M
$55.0M
Q1 25
$83.0M
$62.8M
Q4 24
$74.5M
$65.2M
Q3 24
$82.6M
$70.0M
Q2 24
$69.8M
$51.0M
Q1 24
$64.0M
$49.6M
Net Profit
OPAL
OPAL
OSG
OSG
Q4 25
$16.2M
$-29.7M
Q3 25
$11.4M
$-112.6M
Q2 25
$7.6M
$-72.7M
Q1 25
$1.3M
$-44.7M
Q4 24
$-5.4M
$-20.9M
Q3 24
$17.1M
$-27.5M
Q2 24
$1.9M
$-750.0K
Q1 24
$677.0K
$20.8M
Operating Margin
OPAL
OPAL
OSG
OSG
Q4 25
7.5%
-76.7%
Q3 25
4.6%
-48.2%
Q2 25
-1.1%
-41.8%
Q1 25
-2.3%
-24.1%
Q4 24
-0.5%
-55.5%
Q3 24
14.9%
-29.7%
Q2 24
8.1%
-28.9%
Q1 24
5.6%
-6.5%
Net Margin
OPAL
OPAL
OSG
OSG
Q4 25
18.3%
-73.8%
Q3 25
14.6%
-169.1%
Q2 25
9.8%
-132.3%
Q1 25
1.5%
-71.3%
Q4 24
-7.2%
-55.1%
Q3 24
20.7%
-39.3%
Q2 24
2.7%
-1.5%
Q1 24
1.1%
41.9%
EPS (diluted)
OPAL
OPAL
OSG
OSG
Q4 25
$0.08
$-0.82
Q3 25
$0.05
$-2.35
Q2 25
$0.03
$-1.54
Q1 25
$-0.01
$-1.22
Q4 24
$-0.05
$-11.75
Q3 24
$0.09
$-0.63
Q2 24
$-0.01
$-0.02
Q1 24
$-0.01
$0.44

Balance Sheet & Financial Strength

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

Metric
OPAL
OPAL
OSG
OSG
Cash + ST InvestmentsLiquidity on hand
$24.4M
$146.4M
Total DebtLower is stronger
$361.3M
$117.6M
Stockholders' EquityBook value
$-12.9M
$715.8M
Total Assets
$959.5M
$2.2B
Debt / EquityLower = less leverage
0.16×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
OPAL
OPAL
OSG
OSG
Q4 25
$24.4M
$146.4M
Q3 25
$29.9M
$27.5M
Q2 25
$29.3M
$22.5M
Q1 25
$40.1M
$34.1M
Q4 24
$24.3M
$157.2M
Q3 24
$31.0M
$40.8M
Q2 24
$27.6M
$14.6M
Q1 24
$34.2M
$13.8M
Total Debt
OPAL
OPAL
OSG
OSG
Q4 25
$361.3M
$117.6M
Q3 25
$351.2M
Q2 25
$331.6M
Q1 25
$307.0M
Q4 24
$307.5M
$0
Q3 24
$252.9M
$518.0M
Q2 24
$233.3M
$515.0M
Q1 24
$208.7M
$512.0M
Stockholders' Equity
OPAL
OPAL
OSG
OSG
Q4 25
$-12.9M
$715.8M
Q3 25
$7.5M
$843.4M
Q2 25
$-25.0M
$859.8M
Q1 25
$57.1M
$852.2M
Q4 24
$-148.4M
$798.4M
Q3 24
$-180.1M
$1.5B
Q2 24
$-273.0M
$1.4B
Q1 24
$-382.4M
$1.4B
Total Assets
OPAL
OPAL
OSG
OSG
Q4 25
$959.5M
$2.2B
Q3 25
$916.7M
$2.1B
Q2 25
$905.5M
$8.5B
Q1 25
$884.9M
$8.3B
Q4 24
$881.1M
$8.1B
Q3 24
$831.1M
$9.3B
Q2 24
$782.3M
$8.2B
Q1 24
$750.5M
$8.4B
Debt / Equity
OPAL
OPAL
OSG
OSG
Q4 25
0.16×
Q3 25
46.95×
Q2 25
Q1 25
5.38×
Q4 24
0.00×
Q3 24
0.35×
Q2 24
0.38×
Q1 24
0.38×

Cash Flow & Capital Efficiency

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

Metric
OPAL
OPAL
OSG
OSG
Operating Cash FlowLast quarter
$-3.5M
$-52.3M
Free Cash FlowOCF − Capex
$-13.4M
FCF MarginFCF / Revenue
-15.1%
Capex IntensityCapex / Revenue
11.1%
Cash ConversionOCF / Net Profit
-0.22×
TTM Free Cash FlowTrailing 4 quarters
$-34.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
OPAL
OPAL
OSG
OSG
Q4 25
$-3.5M
$-52.3M
Q3 25
$18.2M
$-41.2M
Q2 25
$-7.9M
$2.1M
Q1 25
$29.7M
$-12.6M
Q4 24
$-532.0K
$762.0K
Q3 24
$17.7M
$48.9M
Q2 24
$533.0K
$20.4M
Q1 24
$13.7M
$7.1M
Free Cash Flow
OPAL
OPAL
OSG
OSG
Q4 25
$-13.4M
Q3 25
$-9.3M
Q2 25
$-29.7M
Q1 25
$18.1M
Q4 24
$-55.0M
Q3 24
$-5.4M
Q2 24
$-22.5M
Q1 24
$-13.0M
FCF Margin
OPAL
OPAL
OSG
OSG
Q4 25
-15.1%
Q3 25
-11.9%
Q2 25
-38.4%
Q1 25
21.8%
Q4 24
-73.8%
Q3 24
-6.5%
Q2 24
-32.2%
Q1 24
-20.4%
Capex Intensity
OPAL
OPAL
OSG
OSG
Q4 25
11.1%
Q3 25
35.3%
Q2 25
28.2%
Q1 25
13.9%
Q4 24
73.1%
Q3 24
27.9%
Q2 24
32.9%
Q1 24
41.8%
Cash Conversion
OPAL
OPAL
OSG
OSG
Q4 25
-0.22×
Q3 25
1.60×
Q2 25
-1.04×
Q1 25
23.11×
Q4 24
Q3 24
1.03×
Q2 24
0.28×
Q1 24
20.26×
0.34×

Financial Flow Comparison

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

Revenue Breakdown by Segment

OPAL
OPAL

Fuel Station Services Segment$65.1M74%
Related Party$12.1M14%
Renewable Power Segment$8.6M10%
Other$2.6M3%

OSG
OSG

Other$28.7M43%
Specialty Property Casualty Program$23.1M34%
Accident Health$9.6M14%
Specialty Automobile$3.1M5%
Niche Specialty Risks$2.4M4%

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