PENTAIR PE ratio PNR

Share price divided by earnings per share over the last twelve months, since 2011.

Today, Oct 23, 2026: 13.9×
10-year median: 20.8×
Against its 10-year history: 11th; percentile: 0 is its lowest day, 100 its highest
10-year range: 11.3× to 30.6×
Peer median: 29.2×

PENTAIR's PE ratio is 13.9× as of Oct 23, 2026: a share price of $55.30 against $3.98 of earnings per share over the last twelve months.

That is below its ten-year median of 20.8×, lower than on 89% of days in the last ten years.

Over that time it ranged from 11.3× in Jun 2018 to 30.6× in Oct 2025.

The median for 10 industrial machinery stocks of a similar size is 29.2×.

PE ratio over time

median 20.8×

The dashed line is the 10-year median and the shaded band the middle half of its days.

Open the interactive chart, with overlays and comparisons

Year by year

Year	End of year	Low	High
2026 so far	13.9×	13.2×	27.2×
2025	26.8×	21.0×	30.6×
2024	25.3×	19.8×	27.2×
2023	23.6×	14.6×	23.7×
2022	14.0×	11.8×	22.9×
2021	24.1×	23.1×	30.0×
2020	25.3×	11.3×	25.8×
2019	22.3×	15.4×	23.4×
2018	15.1×	11.3×	17.8×
2017	14.4×	12.1×	16.4×
2016	11.9×	10.9×	11.9×
2015	12.3×	11.9×	40.2×
2014	36.3×	13.7×	98.4×
2013	96.5×	82.9×	143×
2012	128×	11.0×	130×
2011	10.3×	9.2×	13.2×

Against its peers

Companies in Industrial - Machinery nearest PENTAIR's size, closest first, today.

Company	PE ratio
PNRPENTAIR	13.9×
FLSFlowserve	23.9×
AYIAcuity Inc. (de)	21.1×
ZWSZurn Elkay Water Solutions	29.8×
SPXCSPX Technologies	28.8×
ONTOOnto Innovation	74.7×
DCIDONALDSON Co INC	22.0×
RRXRegal Rexnord	30.5×
TTCToro	28.2×
TKRTimken	29.6×
CRCrane	32.0×
Peer median	29.2×

Where PENTAIR ranks

What the PE ratio tells you

Share price divided by earnings per share over the last twelve months. It is the price tag on a dollar of profit: 20× means you pay $20 for $1 of yearly earnings.

Blank while earnings are negative. A very low PE can mean the market expects profits to fall, so read it with growth and the company's own history.

More on PENTAIR

Valuation data, not investment advice. Prices as of Oct 23, 2026. Reported figures come from the company's filings with the SEC.