Pinnacle West Capital Corp. (PNW) intrinsic value & 10-year financials

Pinnacle West Capital Corp. (PNW) has a Graham intrinsic value of $61.17 per share. At $103.42 on Oct 17, 2026, the stock trades 69% above that value. Over the last 10 fiscal years revenue grew 4.8% a year to $5.3B, with an average return on invested capital of 5.8%.

Graham intrinsic value
$61.17
Share price (Oct 17, 2026)
$103.42
Price vs Graham value
69% above
Market cap
$12.6B
Revenue (FY2025)
$5.3B
Revenue growth (10-yr CAGR)
4.8%
ROIC (10-yr avg)
5.8%
Free cash flow (FY2025)
-$819.5M

PNW 10-year financial history

Fiscal year Revenue Net income EPS (diluted) Free cash flow Operating margin ROIC
FY2025 $5.3B $631.6M $5.05 -$819.5M 20.0% 5.6%
FY2024 $5.1B $626.0M $5.24 -$639.4M 19.7% 5.7%
FY2023 $4.7B $518.8M $4.41 -$638.7M 17.6% 5.1%
FY2022 $4.3B $500.8M $4.26 -$466.0M 16.9% 4.8%
FY2021 $3.8B $635.9M $5.47 -$613.5M 21.2% 5.5%
FY2020 $3.6B $570.1M $4.87 -$360.2M 22.0% 6.0%
FY2019 $3.5B $557.8M $4.77 -$234.7M 19.4% 6.3%
FY2018 $3.7B $530.5M $4.54 $99.0M 21.0% 6.1%
FY2017 $3.6B $507.9M $4.35 -$290.7M 26.2% 6.6%
FY2016 $3.5B $461.5M $3.95 -$252.1M 24.5% 6.3%

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

Executive summary

Pinnacle West Capital has demonstrated mature, steady growth, with revenue compounding at 4.8% annually over the past decade.

Pinnacle West Capital has historically struggled to out-earn its cost of capital, averaging just 5.8% ROIC.

Over the decade, Pinnacle West Capital shows that the company has leveraged its balance sheet to sustain operations.

Benjamin Graham lens

Under Benjamin Graham's formula using SEC EDGAR fundamentals, Pinnacle West Capital is modeled at 2.8% normalized earnings growth with a 5.1% bond-yield adjustment. The resulting Graham intrinsic value estimate is $61.17 per share.

PNW stock: frequently asked questions

What is the intrinsic value of Pinnacle West Capital Corp. (PNW) stock?

Using Benjamin Graham's revised formula, V = EPS × (8.5 + 2g) × 4.4 / Y, with reported diluted earnings per share, a 2.8% normalized growth rate (capped at 15%) and a 5.1% AAA corporate bond yield, PNW's intrinsic value is about $61.17 per share.

Is PNW stock undervalued?

At $103.42 (close on Oct 17, 2026), PNW trades 69% above its Graham value of $61.17. On Graham's terms the shares look fully priced. A formula is a starting point for research, not a recommendation.

How fast has Pinnacle West Capital Corp. grown?

Revenue went from $3.5B in fiscal 2016 to $5.3B in fiscal 2025, a compound annual growth rate of 4.8%. Net income was $631.6M in fiscal 2025.

Does Pinnacle West Capital Corp. generate free cash flow?

Pinnacle West Capital Corp. generated -$819.5M of free cash flow (operating cash flow minus capital expenditures) in fiscal 2025. Free cash flow was positive in 1 of the last 10 reported years.

What is PNW's return on invested capital?

Average ROIC over the last 10 fiscal years was 5.8%, and average return on equity was 9.8%. Sustained ROIC above about 15% usually points to a durable competitive advantage.

Where does this PNW data come from?

From Pinnacle West Capital Corp.'s annual 10-K filings on SEC EDGAR, most recently filed Aug 4, 2026. Prices are end-of-day snapshots; valuations are formula outputs, not investment advice.

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