Opal Fuels Inc. (OPAL) intrinsic value & 10-year financials

Opal Fuels Inc. (OPAL) has a Graham intrinsic value of $3.10 per share. At $1.56 on Oct 17, 2026, the stock trades 50% below that value. Over the last 6 fiscal years revenue grew 19.2% a year to $326.7M, with an average return on invested capital of -2.5%.

Graham intrinsic value
$3.10
Share price (Oct 17, 2026)
$1.56
Price vs Graham value
50% below
Market cap
$45.6M
Revenue (FY2025)
$326.7M
Revenue growth (6-yr CAGR)
19.2%
ROIC (10-yr avg)
-2.5%
Free cash flow (FY2025)
-$34.2M

OPAL 10-year financial history

Fiscal year Revenue Net income EPS (diluted) Free cash flow Operating margin ROIC
FY2025 $326.7M $36.4M $0.15 -$34.2M 2.3% 1.6%
FY2024 $290.9M $14.3M $0.02 -$94.2M 7.3% -24.0%
FY2023 $251.1M $127.0M $0.69 -$75.6M 2.8% -1.3%
FY2022 $230.7M $32.6M $0.12 -$132.8M 0.8% -0.6%
FY2021 $162.0M $40.8M $0.00 -$70.8M 6.8% 11.7%
FY2020 — — — — — —

Source: annual 10-K filings on SEC EDGAR. Figures in USD.

Executive summary

OPAL Fuels Inc. revenue growth over the past decade is N/A; insufficient history prevents a reliable 10-year CAGR calculation.

OPAL Fuels Inc. has historically struggled to out-earn its cost of capital, averaging just -2.5% ROIC.

OPAL Fuels Inc. capital allocation metrics are N/A for the decade; share count and net debt history are incomplete.

Benjamin Graham lens

Under Benjamin Graham's formula using SEC EDGAR fundamentals, OPAL Fuels Inc. is modeled at 7.7% normalized earnings growth with a 5.1% bond-yield adjustment. The resulting Graham intrinsic value estimate is $3.10 per share.

OPAL stock: frequently asked questions

What is the intrinsic value of Opal Fuels Inc. (OPAL) stock?

Using Benjamin Graham's revised formula, V = EPS × (8.5 + 2g) × 4.4 / Y, with reported diluted earnings per share, a 7.7% normalized growth rate (capped at 15%) and a 5.1% AAA corporate bond yield, OPAL's intrinsic value is about $3.10 per share.

Is OPAL stock undervalued?

At $1.56 (close on Oct 17, 2026), OPAL trades 50% below its Graham value of $3.10. On Graham's terms that leaves a margin of safety. A formula is a starting point for research, not a recommendation.

Does Opal Fuels Inc. generate free cash flow?

Opal Fuels Inc. generated -$34.2M of free cash flow (operating cash flow minus capital expenditures) in fiscal 2025. Free cash flow was positive in 0 of the last 5 reported years.

What is OPAL's return on invested capital?

Average ROIC over the last 6 fiscal years was -2.5%, and average return on equity was -65.8%. Sustained ROIC above about 15% usually points to a durable competitive advantage.

Where does this OPAL data come from?

From Opal Fuels Inc.'s annual 10-K filings on SEC EDGAR, most recently filed May 11, 2026. Prices are end-of-day snapshots; valuations are formula outputs, not investment advice.

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