Pentair PLC (PNR) intrinsic value & 10-year financials

Pentair PLC (PNR) has a Graham intrinsic value of $54.46 per share. At $53.44 on Oct 17, 2026, the stock trades 2% below that value. Over the last 10 fiscal years revenue grew 4.6% a year to $4.2B, with an average return on invested capital of 12.3%.

Graham intrinsic value
$54.46
Share price (Oct 17, 2026)
$53.44
Price vs Graham value
2% below
Market cap
$8.8B
Revenue (FY2025)
$4.2B
Revenue growth (10-yr CAGR)
4.6%
ROIC (10-yr avg)
12.3%
Free cash flow (FY2025)
$746.0M

PNR 10-year financial history

Fiscal year Revenue Net income EPS (diluted) Free cash flow Operating margin ROIC
FY2025 $4.2B $653.8M $3.96 $746.0M 20.5% 13.8%
FY2024 $4.1B $625.4M $3.74 $692.3M 19.7% 13.6%
FY2023 $4.1B $622.7M $3.75 $543.2M 18.0% 14.7%
FY2022 $4.1B $480.9M $2.90 $278.1M 14.4% 12.7%
FY2021 $3.8B $553.0M $3.30 $553.0M 16.9% 18.2%
FY2020 $3.0B $358.6M $2.14 $511.4M 15.3% 12.7%
FY2019 $3.0B $355.7M $2.09 $294.5M 14.6% 13.4%
FY2018 $3.0B $347.4M $1.96 $390.9M 14.7% 8.3%
FY2017 $2.8B $666.5M $3.63 $549.3M 23.9% 9.2%
FY2016 $2.8B $522.2M $2.85 $743.6M 25.2% 7.0%

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

Executive summary

Pentair has demonstrated mature, steady growth, with revenue compounding at 4.6% annually over the past decade.

Pentair returns on capital have been average, hovering around 12.3% ROIC over the decade.

Pentair has not shown aggressive share repurchases (>10% retirement) or a major balance-sheet leverage increase (>50% net debt growth) over the 10-year window.

Benjamin Graham lens

Under Benjamin Graham's formula using SEC EDGAR fundamentals, Pentair is modeled at 3.7% normalized earnings growth with a 5.1% bond-yield adjustment. The resulting Graham intrinsic value estimate is $54.46 per share.

PNR stock: frequently asked questions

What is the intrinsic value of Pentair PLC (PNR) stock?

Using Benjamin Graham's revised formula, V = EPS × (8.5 + 2g) × 4.4 / Y, with reported diluted earnings per share, a 3.7% normalized growth rate (capped at 15%) and a 5.1% AAA corporate bond yield, PNR's intrinsic value is about $54.46 per share.

Is PNR stock undervalued?

At $53.44 (close on Oct 17, 2026), PNR trades 2% below its Graham value of $54.46. On Graham's terms that leaves a margin of safety. A formula is a starting point for research, not a recommendation.

How fast has Pentair PLC grown?

Revenue went from $2.8B in fiscal 2016 to $4.2B in fiscal 2025, a compound annual growth rate of 4.6%. Net income was $653.8M in fiscal 2025.

Does Pentair PLC generate free cash flow?

Pentair PLC generated $746.0M of free cash flow (operating cash flow minus capital expenditures) in fiscal 2025. Free cash flow was positive in 10 of the last 10 reported years.

What is PNR's return on invested capital?

Average ROIC over the last 10 fiscal years was 12.3%, and average return on equity was 17.3%. Sustained ROIC above about 15% usually points to a durable competitive advantage.

Where does this PNR data come from?

From Pentair PLC's annual 10-K filings on SEC EDGAR, most recently filed Jul 28, 2026. Prices are end-of-day snapshots; valuations are formula outputs, not investment advice.

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