Net Power Inc. (NPWR) intrinsic value & 10-year financials

Net Power Inc. (NPWR) has a Graham intrinsic value of $381.22 per share. At $1.00 on Oct 17, 2026, the stock trades 100% below that value. Over the last 5 fiscal years revenue shrank 34.4% a year to $0, with an average return on invested capital of -365.9%.

Graham intrinsic value
$381.22
Share price (Oct 17, 2026)
$1.00
Price vs Graham value
100% below
Market cap
$78.8M
Revenue (FY2025)
$0
Revenue growth (5-yr CAGR)
-34.4%
ROIC (10-yr avg)
-365.9%
Free cash flow (FY2025)
-$154.0M

NPWR 10-year financial history

Fiscal year Revenue Net income EPS (diluted) Free cash flow Operating margin ROIC
FY2025 $0 -$578.6M -$7.34 -$154.0M — -1059.7%
FY2024 $250.0K -$49.2M -$0.67 -$100.3M -72528.4% -51.6%
FY2023 $175.0K — — — — —
FY2022 $580.0K $4.1M -$14.79 -$972.5K -1020.0% 13.5%
FY2021 — — — — — —

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

Executive summary

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

NET Power Inc. has historically struggled to out-earn its cost of capital, averaging just -16.2% ROIC.

NET Power 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, NET Power Inc. is modeled at -34.4% normalized earnings growth with a 5.1% bond-yield adjustment. The resulting Graham intrinsic value estimate is $381.22 per share.

NPWR stock: frequently asked questions

What is the intrinsic value of Net Power Inc. (NPWR) stock?

Using Benjamin Graham's revised formula, V = EPS × (8.5 + 2g) × 4.4 / Y, with reported diluted earnings per share, a -34.4% normalized growth rate (capped at 15%) and a 5.1% AAA corporate bond yield, NPWR's intrinsic value is about $381.22 per share.

Is NPWR stock undervalued?

At $1.00 (close on Oct 17, 2026), NPWR trades 100% below its Graham value of $381.22. On Graham's terms that leaves a margin of safety. A formula is a starting point for research, not a recommendation.

Does Net Power Inc. generate free cash flow?

Net Power Inc. generated -$154.0M of free cash flow (operating cash flow minus capital expenditures) in fiscal 2025. Free cash flow was positive in 0 of the last 3 reported years.

What is NPWR's return on invested capital?

Average ROIC over the last 5 fiscal years was -365.9%, and average return on equity was -50.6%. Sustained ROIC above about 15% usually points to a durable competitive advantage.

Where does this NPWR data come from?

From Net Power Inc.'s annual 10-K filings on SEC EDGAR, most recently filed Aug 13, 2026. Prices are end-of-day snapshots; valuations are formula outputs, not investment advice.

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