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Side-by-side financial comparison of OPAL Fuels Inc. (OPAL) and SI-BONE, Inc. (SIBN). Click either name above to swap in a different company.

OPAL Fuels Inc. is the larger business by last-quarter revenue ($88.4M vs $56.3M, roughly 1.6× SI-BONE, Inc.). OPAL Fuels Inc. runs the higher net margin — 18.3% vs -2.9%, a 21.2% gap on every dollar of revenue. On growth, OPAL Fuels Inc. posted the faster year-over-year revenue change (18.7% vs 15.0%). SI-BONE, Inc. produced more free cash flow last quarter ($440.0K vs $-13.4M). Over the past eight quarters, SI-BONE, Inc.'s revenue compounded faster (22.0% CAGR vs 17.6%).

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.

Bone Clones, Inc. manufactures, distributes, and sells osteological reproductions of human and animal bones. Located in Chatsworth, California, Bone Clones provides these reproductions to museums, universities, medical schools, and other educational institutions.

OPAL vs SIBN — Head-to-Head

Bigger by revenue
OPAL
OPAL
1.6× larger
OPAL
$88.4M
$56.3M
SIBN
Growing faster (revenue YoY)
OPAL
OPAL
+3.7% gap
OPAL
18.7%
15.0%
SIBN
Higher net margin
OPAL
OPAL
21.2% more per $
OPAL
18.3%
-2.9%
SIBN
More free cash flow
SIBN
SIBN
$13.8M more FCF
SIBN
$440.0K
$-13.4M
OPAL
Faster 2-yr revenue CAGR
SIBN
SIBN
Annualised
SIBN
22.0%
17.6%
OPAL

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
OPAL
OPAL
SIBN
SIBN
Revenue
$88.4M
$56.3M
Net Profit
$16.2M
$-1.6M
Gross Margin
79.0%
Operating Margin
7.5%
-4.4%
Net Margin
18.3%
-2.9%
Revenue YoY
18.7%
15.0%
Net Profit YoY
401.5%
63.4%
EPS (diluted)
$0.08
$-0.04

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
SIBN
SIBN
Q4 25
$88.4M
$56.3M
Q3 25
$77.9M
$48.7M
Q2 25
$77.4M
$48.6M
Q1 25
$83.0M
$47.3M
Q4 24
$74.5M
$49.0M
Q3 24
$82.6M
$40.3M
Q2 24
$69.8M
$40.0M
Q1 24
$64.0M
$37.9M
Net Profit
OPAL
OPAL
SIBN
SIBN
Q4 25
$16.2M
$-1.6M
Q3 25
$11.4M
$-4.6M
Q2 25
$7.6M
$-6.2M
Q1 25
$1.3M
$-6.5M
Q4 24
$-5.4M
$-4.5M
Q3 24
$17.1M
$-6.6M
Q2 24
$1.9M
$-8.9M
Q1 24
$677.0K
$-10.9M
Gross Margin
OPAL
OPAL
SIBN
SIBN
Q4 25
79.0%
Q3 25
79.8%
Q2 25
79.8%
Q1 25
79.7%
Q4 24
79.1%
Q3 24
79.1%
Q2 24
79.0%
Q1 24
78.9%
Operating Margin
OPAL
OPAL
SIBN
SIBN
Q4 25
7.5%
-4.4%
Q3 25
4.6%
-11.1%
Q2 25
-1.1%
-14.4%
Q1 25
-2.3%
-15.8%
Q4 24
-0.5%
-11.2%
Q3 24
14.9%
-18.9%
Q2 24
8.1%
-25.2%
Q1 24
5.6%
-31.8%
Net Margin
OPAL
OPAL
SIBN
SIBN
Q4 25
18.3%
-2.9%
Q3 25
14.6%
-9.4%
Q2 25
9.8%
-12.7%
Q1 25
1.5%
-13.8%
Q4 24
-7.2%
-9.2%
Q3 24
20.7%
-16.3%
Q2 24
2.7%
-22.4%
Q1 24
1.1%
-28.8%
EPS (diluted)
OPAL
OPAL
SIBN
SIBN
Q4 25
$0.08
$-0.04
Q3 25
$0.05
$-0.11
Q2 25
$0.03
$-0.14
Q1 25
$-0.01
$-0.15
Q4 24
$-0.05
$-0.10
Q3 24
$0.09
$-0.16
Q2 24
$-0.01
$-0.22
Q1 24
$-0.01
$-0.27

Balance Sheet & Financial Strength

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

Metric
OPAL
OPAL
SIBN
SIBN
Cash + ST InvestmentsLiquidity on hand
$24.4M
$42.2M
Total DebtLower is stronger
$361.3M
$35.6M
Stockholders' EquityBook value
$-12.9M
$177.5M
Total Assets
$959.5M
$238.6M
Debt / EquityLower = less leverage
0.20×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
OPAL
OPAL
SIBN
SIBN
Q4 25
$24.4M
$42.2M
Q3 25
$29.9M
$26.5M
Q2 25
$29.3M
$34.1M
Q1 25
$40.1M
$41.2M
Q4 24
$24.3M
$34.9M
Q3 24
$31.0M
$30.2M
Q2 24
$27.6M
$25.6M
Q1 24
$34.2M
$32.0M
Total Debt
OPAL
OPAL
SIBN
SIBN
Q4 25
$361.3M
$35.6M
Q3 25
$351.2M
$35.5M
Q2 25
$331.6M
$35.5M
Q1 25
$307.0M
$35.5M
Q4 24
$307.5M
$35.5M
Q3 24
$252.9M
$36.2M
Q2 24
$233.3M
$36.1M
Q1 24
$208.7M
$36.1M
Stockholders' Equity
OPAL
OPAL
SIBN
SIBN
Q4 25
$-12.9M
$177.5M
Q3 25
$7.5M
$172.1M
Q2 25
$-25.0M
$170.3M
Q1 25
$57.1M
$167.3M
Q4 24
$-148.4M
$167.0M
Q3 24
$-180.1M
$165.0M
Q2 24
$-273.0M
$164.7M
Q1 24
$-382.4M
$165.5M
Total Assets
OPAL
OPAL
SIBN
SIBN
Q4 25
$959.5M
$238.6M
Q3 25
$916.7M
$234.3M
Q2 25
$905.5M
$230.9M
Q1 25
$884.9M
$227.3M
Q4 24
$881.1M
$230.4M
Q3 24
$831.1M
$227.0M
Q2 24
$782.3M
$223.8M
Q1 24
$750.5M
$223.7M
Debt / Equity
OPAL
OPAL
SIBN
SIBN
Q4 25
0.20×
Q3 25
46.95×
0.21×
Q2 25
0.21×
Q1 25
5.38×
0.21×
Q4 24
0.21×
Q3 24
0.22×
Q2 24
0.22×
Q1 24
0.22×

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
SIBN
SIBN
Operating Cash FlowLast quarter
$-3.5M
$1.7M
Free Cash FlowOCF − Capex
$-13.4M
$440.0K
FCF MarginFCF / Revenue
-15.1%
0.8%
Capex IntensityCapex / Revenue
11.1%
2.3%
Cash ConversionOCF / Net Profit
-0.22×
TTM Free Cash FlowTrailing 4 quarters
$-34.2M
$-9.1M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
OPAL
OPAL
SIBN
SIBN
Q4 25
$-3.5M
$1.7M
Q3 25
$18.2M
$2.3M
Q2 25
$-7.9M
$173.0K
Q1 25
$29.7M
$-4.9M
Q4 24
$-532.0K
$1.2M
Q3 24
$17.7M
$302.0K
Q2 24
$533.0K
$-6.3M
Q1 24
$13.7M
$-7.6M
Free Cash Flow
OPAL
OPAL
SIBN
SIBN
Q4 25
$-13.4M
$440.0K
Q3 25
$-9.3M
$-620.0K
Q2 25
$-29.7M
$-1.9M
Q1 25
$18.1M
$-7.0M
Q4 24
$-55.0M
$-1.1M
Q3 24
$-5.4M
$-2.7M
Q2 24
$-22.5M
$-9.4M
Q1 24
$-13.0M
$-9.7M
FCF Margin
OPAL
OPAL
SIBN
SIBN
Q4 25
-15.1%
0.8%
Q3 25
-11.9%
-1.3%
Q2 25
-38.4%
-4.0%
Q1 25
21.8%
-14.8%
Q4 24
-73.8%
-2.2%
Q3 24
-6.5%
-6.8%
Q2 24
-32.2%
-23.6%
Q1 24
-20.4%
-25.5%
Capex Intensity
OPAL
OPAL
SIBN
SIBN
Q4 25
11.1%
2.3%
Q3 25
35.3%
6.1%
Q2 25
28.2%
4.3%
Q1 25
13.9%
4.4%
Q4 24
73.1%
4.6%
Q3 24
27.9%
7.5%
Q2 24
32.9%
7.8%
Q1 24
41.8%
5.5%
Cash Conversion
OPAL
OPAL
SIBN
SIBN
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×

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%

SIBN
SIBN

US$53.5M95%
Non Us$2.9M5%

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