Question 1

What is Pentair's P/E ratio?

Accepted Answer

Pentair (PNR) P/E ratio is 15.4× as of July 22, 2026. The ratio is calculated by dividing market capitalisation by trailing twelve-month earnings (net income), using USD-normalised financials (IAS 21 exchange-rate translation for non-USD reporters).

Question 2

How is the P/E ratio calculated?

Accepted Answer

P/E = Share Price ÷ Trailing Twelve-Month (TTM) Diluted EPS, or equivalently Market Capitalisation ÷ TTM Net Income. All inputs are sourced from audited GAAP/IFRS filings and translated to USD using period-end exchange rates so the multiple is comparable across companies and currencies.

Question 3

What is the P/E ratio?

Accepted Answer

The price-to-earnings (P/E) ratio, also called the earnings multiple, measures how much investors pay per dollar of a company's trailing twelve-month (TTM) earnings. It is calculated as share price ÷ TTM diluted EPS (equivalent to market capitalisation ÷ TTM net income). A higher P/E implies the market is pricing in stronger future earnings growth or lower risk; a lower P/E can signal slower expected growth, higher risk, or potential undervaluation.

Question 4

What is a good P/E ratio for Pentair?

Accepted Answer

There is no universal "good" P/E. As a rule of thumb, the S&P 500 has historically averaged a P/E in the mid-to-high teens; mature, slow-growth businesses commonly trade in the 10–18× range, while high-growth or asset-light companies often trade at 25–50×+. What matters is the comparison to sector peers and to the company's own historical range. For Pentair specifically, the relevant sector benchmark is the current sector median of 27.8×.

Question 5

Is Pentair's P/E ratio high or low?

Accepted Answer

Pentair's P/E ratio of 15.4× is below its own 5-year average of 21.2× and below the sector median of 27.8×. That places the current reading at the 13th percentile of its 10-year history. A higher multiple usually reflects stronger expected growth, lower perceived risk, or higher returns on capital; a lower multiple reflects the opposite.

Question 6

What is Pentair's historical P/E ratio range?

Accepted Answer

In the available daily series, Pentair (PNR) P/E ratio has ranged from a low of 5.4× in 2003 to a high of 93.8× in 2012. The 5-year average is 21.2× and the 5-year median is 21.7×.

Question 7

What was Pentair's P/E ratio in 2025?

Accepted Answer

Pentair (PNR) P/E ratio at the end of 2025 was 26.0×. Annual values reflect the multiple on the last trading day of each calendar year, using the trailing twelve-month earnings figure available at that date.

Question 8

Why does Pentair's P/E ratio change over time?

Accepted Answer

Valuation multiples move with two inputs: the numerator (market capitalisation, which tracks the share price) and the denominator (earnings). Share-price changes — driven by interest rates, earnings expectations, risk appetite, and broader market sentiment — typically dominate short-term moves, while changes in the underlying fundamental drive the longer-term trend. As a result, the ratio can rise during stock-price rallies even if the business itself has not become more valuable, and fall during sell-offs even when fundamentals are improving.


2025	$17B	$654M	26.0×	-0.9×	Dec 31, 2025
2024	$16.8B	$625M	26.9×	+7.6×	Dec 31, 2024
2023	$12B	$623M	19.3×	+3.9×	Dec 31, 2023
2022	$7.4B	$481M	15.4×	-6.4×	Dec 31, 2022
2021	$12.1B	$553M	21.8×	-2.8×	Dec 31, 2021
2020	$8.82B	$359M	24.6×	+2.9×	Dec 31, 2020
2019	$7.73B	$356M	21.7×	+2.9×	Dec 31, 2019
2018	$6.53B	$347M	18.8×	+5.9×	Dec 31, 2018
2017	$8.6B	$667M	12.9×	-0.2×	Dec 31, 2017
2016	$6.84B	$522M	13.1×	+0.3×	Dec 31, 2016
2015	$6B	$469M	12.8×	-25.2×	Dec 31, 2015
2014	$8.17B	$215M	38.0×	+18.8×	Dec 31, 2014
2013	$10.3B	$537M	19.2×	—	Dec 31, 2013
2012	$3.76B	-$107M	—	—	Dec 31, 2012
2011	$2.2B	$34.2M	64.4×	+52.2×	Dec 31, 2011
2010	$2.41B	$198M	12.2×	-6.1×	Dec 31, 2010
2009	$2.11B	$115M	18.2×	+11.5×	Dec 31, 2009
2008	$1.55B	$229M	6.8×	-4.1×	Dec 31, 2008
2007	$2.3B	$211M	10.9×	-0.4×	Dec 31, 2007
2006	$2.08B	$184M	11.3×	-1.9×	Dec 31, 2006
2005	$2.33B	$176M	13.3×	-3.8×	Dec 31, 2005
2004	$2.93B	$171M	17.1×	+11.7×	Dec 31, 2004
2003	$764M	$141M	5.4×	-3.3×	Dec 31, 2003
2002	$1.14B	$130M	8.8×	—	Dec 31, 2002


General Dynamics (GD)	21.9×
Lennox International (LII)	20.6×
Copart (CPRT)	20.4×
Union Pacific (UNP)	19.9×
Allegion (ALLE)	19.7×
Alamo Group (ALG)	19.6×
Andersons (ANDE)	19.0×
Carlisle Companies (CSL)	18.8×
Snap-on (SNA)	18.5×
Brady (BRC)	18.5×
Canadian National Railway (CNI)	18.4×
FedEx (FDX)	18.4×
Pool (POOL)	18.1×
McGrath RentCorp (MGRC)	17.5×
Honeywell International (HON)	17.5×
A. O. Smith (AOS)	17.4×
Textron (TXT)	16.6×
Northrop Grumman (NOC)	16.1×
United Parcel Service (UPS)	15.9×
Delta Air Lines (DAL)	15.5×
ABM Industries (ABM)	15.2×
Masco (MAS)	14.6×
Upwork (UPWK)	12.9×
United Airlines Holdings (UAL)	12.7×
AGCO (AGCO)	10.9×

P/E Ratio for Pentair (PNR) 2002-2026

P/E Ratio daily chart for Pentair (PNR)

Historical P/E Ratio for Pentair (PNR) from 2002 to 2025

About P/E Ratio at Pentair (PNR)

Pentair P/E Ratio by Year

Pentair P/E Ratio 2025: 26.0×

Pentair P/E Ratio 2024: 26.9×

Pentair P/E Ratio 2023: 19.3×

Pentair P/E Ratio 2022: 15.4×

Pentair P/E Ratio 2021: 21.8×

Sector peers by P/E Ratio — chart

Sector peers by P/E Ratio — table

Frequently asked questions

Pentair (PNR) Key Financials