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Side-by-side financial comparison of OPAL Fuels Inc. (OPAL) and PTC THERAPEUTICS, INC. (PTCT). Click either name above to swap in a different company.

PTC THERAPEUTICS, INC. is the larger business by last-quarter revenue ($164.7M vs $88.4M, roughly 1.9× OPAL Fuels Inc.). OPAL Fuels Inc. runs the higher net margin — 18.3% vs -82.0%, a 100.3% gap on every dollar of revenue. On growth, OPAL Fuels Inc. posted the faster year-over-year revenue change (18.7% vs -22.7%). OPAL Fuels Inc. produced more free cash flow last quarter ($-13.4M vs $-36.6M). Over the past eight quarters, OPAL Fuels Inc.'s revenue compounded faster (17.6% CAGR vs -11.5%).

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.

PTC Therapeutics, Inc. is a US pharmaceutical company focused on the development of orally administered small molecule drugs and gene therapy which regulate gene expression by targeting post-transcriptional control (PTC) mechanisms in orphan diseases.

OPAL vs PTCT — Head-to-Head

Bigger by revenue
PTCT
PTCT
1.9× larger
PTCT
$164.7M
$88.4M
OPAL
Growing faster (revenue YoY)
OPAL
OPAL
+41.5% gap
OPAL
18.7%
-22.7%
PTCT
Higher net margin
OPAL
OPAL
100.3% more per $
OPAL
18.3%
-82.0%
PTCT
More free cash flow
OPAL
OPAL
$23.3M more FCF
OPAL
$-13.4M
$-36.6M
PTCT
Faster 2-yr revenue CAGR
OPAL
OPAL
Annualised
OPAL
17.6%
-11.5%
PTCT

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
OPAL
OPAL
PTCT
PTCT
Revenue
$88.4M
$164.7M
Net Profit
$16.2M
$-135.0M
Gross Margin
Operating Margin
7.5%
-43.3%
Net Margin
18.3%
-82.0%
Revenue YoY
18.7%
-22.7%
Net Profit YoY
401.5%
-104.8%
EPS (diluted)
$0.08
$-1.63

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
PTCT
PTCT
Q4 25
$88.4M
$164.7M
Q3 25
$77.9M
$211.0M
Q2 25
$77.4M
$178.9M
Q1 25
$83.0M
$1.2B
Q4 24
$74.5M
$213.2M
Q3 24
$82.6M
$196.8M
Q2 24
$69.8M
$186.7M
Q1 24
$64.0M
$210.1M
Net Profit
OPAL
OPAL
PTCT
PTCT
Q4 25
$16.2M
$-135.0M
Q3 25
$11.4M
$15.9M
Q2 25
$7.6M
$-64.8M
Q1 25
$1.3M
$866.6M
Q4 24
$-5.4M
$-65.9M
Q3 24
$17.1M
$-106.7M
Q2 24
$1.9M
$-99.2M
Q1 24
$677.0K
$-91.6M
Operating Margin
OPAL
OPAL
PTCT
PTCT
Q4 25
7.5%
-43.3%
Q3 25
4.6%
1.4%
Q2 25
-1.1%
-19.5%
Q1 25
-2.3%
82.5%
Q4 24
-0.5%
-76.2%
Q3 24
14.9%
-27.7%
Q2 24
8.1%
-21.5%
Q1 24
5.6%
-21.6%
Net Margin
OPAL
OPAL
PTCT
PTCT
Q4 25
18.3%
-82.0%
Q3 25
14.6%
7.5%
Q2 25
9.8%
-36.3%
Q1 25
1.5%
73.7%
Q4 24
-7.2%
-30.9%
Q3 24
20.7%
-54.2%
Q2 24
2.7%
-53.1%
Q1 24
1.1%
-43.6%
EPS (diluted)
OPAL
OPAL
PTCT
PTCT
Q4 25
$0.08
$-1.63
Q3 25
$0.05
$0.20
Q2 25
$0.03
$-0.83
Q1 25
$-0.01
$10.04
Q4 24
$-0.05
$-0.85
Q3 24
$0.09
$-1.39
Q2 24
$-0.01
$-1.29
Q1 24
$-0.01
$-1.20

Balance Sheet & Financial Strength

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

Metric
OPAL
OPAL
PTCT
PTCT
Cash + ST InvestmentsLiquidity on hand
$24.4M
$1.9B
Total DebtLower is stronger
$361.3M
Stockholders' EquityBook value
$-12.9M
$-205.3M
Total Assets
$959.5M
$2.9B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
OPAL
OPAL
PTCT
PTCT
Q4 25
$24.4M
$1.9B
Q3 25
$29.9M
$1.7B
Q2 25
$29.3M
$2.0B
Q1 25
$40.1M
$2.0B
Q4 24
$24.3M
$1.1B
Q3 24
$31.0M
$1.0B
Q2 24
$27.6M
$1.1B
Q1 24
$34.2M
$884.8M
Total Debt
OPAL
OPAL
PTCT
PTCT
Q4 25
$361.3M
Q3 25
$351.2M
Q2 25
$331.6M
Q1 25
$307.0M
Q4 24
$307.5M
Q3 24
$252.9M
Q2 24
$233.3M
Q1 24
$208.7M
Stockholders' Equity
OPAL
OPAL
PTCT
PTCT
Q4 25
$-12.9M
$-205.3M
Q3 25
$7.5M
$-155.8M
Q2 25
$-25.0M
$-206.5M
Q1 25
$57.1M
$-185.8M
Q4 24
$-148.4M
$-1.1B
Q3 24
$-180.1M
$-1.1B
Q2 24
$-273.0M
$-980.2M
Q1 24
$-382.4M
$-893.9M
Total Assets
OPAL
OPAL
PTCT
PTCT
Q4 25
$959.5M
$2.9B
Q3 25
$916.7M
$2.6B
Q2 25
$905.5M
$2.6B
Q1 25
$884.9M
$2.7B
Q4 24
$881.1M
$1.7B
Q3 24
$831.1M
$1.8B
Q2 24
$782.3M
$1.9B
Q1 24
$750.5M
$1.8B
Debt / Equity
OPAL
OPAL
PTCT
PTCT
Q4 25
Q3 25
46.95×
Q2 25
Q1 25
5.38×
Q4 24
Q3 24
Q2 24
Q1 24

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
PTCT
PTCT
Operating Cash FlowLast quarter
$-3.5M
$-34.3M
Free Cash FlowOCF − Capex
$-13.4M
$-36.6M
FCF MarginFCF / Revenue
-15.1%
-22.3%
Capex IntensityCapex / Revenue
11.1%
1.4%
Cash ConversionOCF / Net Profit
-0.22×
TTM Free Cash FlowTrailing 4 quarters
$-34.2M
$702.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
OPAL
OPAL
PTCT
PTCT
Q4 25
$-3.5M
$-34.3M
Q3 25
$18.2M
$-66.3M
Q2 25
$-7.9M
$-58.3M
Q1 25
$29.7M
$870.1M
Q4 24
$-532.0K
$-30.0M
Q3 24
$17.7M
$-77.0M
Q2 24
$533.0K
$-71.5M
Q1 24
$13.7M
$70.8M
Free Cash Flow
OPAL
OPAL
PTCT
PTCT
Q4 25
$-13.4M
$-36.6M
Q3 25
$-9.3M
$-69.7M
Q2 25
$-29.7M
$-59.6M
Q1 25
$18.1M
$868.4M
Q4 24
$-55.0M
$-33.8M
Q3 24
$-5.4M
$-77.5M
Q2 24
$-22.5M
$-78.8M
Q1 24
$-13.0M
$61.2M
FCF Margin
OPAL
OPAL
PTCT
PTCT
Q4 25
-15.1%
-22.3%
Q3 25
-11.9%
-33.1%
Q2 25
-38.4%
-33.3%
Q1 25
21.8%
73.8%
Q4 24
-73.8%
-15.8%
Q3 24
-6.5%
-39.4%
Q2 24
-32.2%
-42.2%
Q1 24
-20.4%
29.1%
Capex Intensity
OPAL
OPAL
PTCT
PTCT
Q4 25
11.1%
1.4%
Q3 25
35.3%
1.6%
Q2 25
28.2%
0.7%
Q1 25
13.9%
0.1%
Q4 24
73.1%
1.8%
Q3 24
27.9%
0.3%
Q2 24
32.9%
4.0%
Q1 24
41.8%
4.6%
Cash Conversion
OPAL
OPAL
PTCT
PTCT
Q4 25
-0.22×
Q3 25
1.60×
-4.17×
Q2 25
-1.04×
Q1 25
23.11×
1.00×
Q4 24
Q3 24
1.03×
Q2 24
0.28×
Q1 24
20.26×

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%

PTCT
PTCT

Segment breakdown not available.

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