Pentair plc (PNR) P/E Ratio History
Fairly ValuedTrading at 18.8x, near 5Y avg of 21.4x · 25th percentile · In line with own history · Data 1990–2026
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P/E Ratio Analysis
As of June 22, 2026, Pentair plc (PNR) trades at a price-to-earnings ratio of 18.8x, with a stock price of $74.32 and trailing twelve-month earnings per share of $4.10.
The current P/E is 12% below its 5-year average of 21.4x. Over the past five years, PNR's P/E has ranged from a low of 12.6x to a high of 28.0x, placing the current valuation at the 25th percentile of its historical range.
Compared to the Industrials sector median P/E of 25.6x, PNR trades at a 27% discount to its sector peers. The sector includes 403 companies with P/E ratios ranging from 0.1x to 198.8x.
The PEG ratio of 1.43 (P/E divided by 6% EPS growth) suggests a fair valuation relative to its earnings growth. Peter Lynch popularized the rule that a PEG below 1.0 indicates an attractive entry point.
Relative to the broader market, PNR trades at a notable discount to the S&P 500 median P/E of 24.4x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our PNR DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
PNR Cross-Benchmark Valuation
How does the current P/E compare to sector peers and the broader market?
PNR P/E vs Peers
Flow control and water equipment peers sorted by market cap
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $26B | 28.4 | 1.24 | +7% | |
| $5B | 32.1 | 3.68 | -16% | |
| $4B | 12.4Lowest | - | +26% | |
| $125B | 35.2 | - | -5% | |
| $34B | 23.3 | 2.43 | -1% | |
| $7B | 18.3 | 4.73 | -4% | |
| $3B | 22.1 | 0.16Best | +26% | |
| $510M | 16.6 | 1.69 | +67%Best |
Lower P/E can signal a discount or weaker growth expectations; PEG adds growth context.
PNR Historical P/E Data (1990–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Period End | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q1 | - | $87.11 | $4.08 | 21.4x | +18% |
| FY2025 Q4 | Dec 31 2025 | $104.14 | $3.96 | 26.3x | +46% |
| FY2025 Q3 | - | $110.76 | $3.95 | 28.0x | +55% |
| FY2025 Q2 | Jun 30 2025 | $102.66 | $3.67 | 28.0x | +55% |
| FY2025 Q1 | Mar 31 2025 | $87.48 | $3.88 | 22.5x | +25% |
| FY2024 Q4 | - | $100.64 | $3.75 | 26.8x | +49% |
| FY2024 Q3 | Sep 30 2024 | $97.79 | $4.00 | 24.4x | +36% |
| FY2024 Q2 | Jun 30 2024 | $76.67 | $3.95 | 19.4x | +8% |
| FY2024 Q1 | Mar 31 2024 | $85.44 | $3.76 | 22.7x | +26% |
| FY2023 Q4 | Dec 31 2023 | $72.71 | $3.74 | 19.4x | +8% |
| FY2023 Q3 | Sep 30 2023 | $64.75 | $3.07 | 21.1x | +17% |
| FY2023 Q2 | Jun 30 2023 | $64.60 | $2.98 | 21.7x | +20% |
| FY2023 Q1 | Mar 31 2023 | $55.27 | $2.98 | 18.5x | +3% |
| FY2022 Q4 | Dec 31 2022 | $44.98 | $2.91 | 15.5x | -14% |
| FY2022 Q3 | Sep 30 2022 | $40.63 | $3.22 | 12.6x | -30% |
| FY2022 Q2 | - | $45.77 | $3.38 | 13.5x | -25% |
| FY2022 Q1 | - | $54.21 | $3.25 | 16.7x | -8% |
| FY2021 Q4 | Dec 31 2021 | $73.03 | $3.31 | 22.1x | +22% |
| FY2021 Q3 | - | $72.63 | $3.03 | 24.0x | +33% |
| FY2021 Q2 | Jun 30 2021 | $67.49 | $2.83 | 23.8x | +32% |
| FY2021 Q1 | Mar 31 2021 | $62.32 | $2.47 | 25.2x | +40% |
| FY2020 Q4 | - | $53.09 | $2.13 | 24.9x | +38% |
| FY2020 Q3 | Sep 30 2020 | $45.77 | $2.10 | 21.8x | +21% |
| FY2020 Q2 | - | $37.99 | $1.99 | 19.1x | +6% |
| FY2020 Q1 | - | $29.76 | $2.23 | 13.3x | -26% |
| FY2019 Q4 | - | $45.87 | $2.10 | 21.8x | +21% |
| FY2019 Q3 | Sep 30 2019 | $37.80 | $2.05 | 18.4x | +2% |
| FY2019 Q2 | Jun 30 2019 | $37.20 | $2.13 | 17.5x | -3% |
| FY2019 Q1 | Mar 31 2019 | $44.51 | $1.69 | 26.3x | +46% |
| FY2018 Q4 | Dec 31 2018 | $37.78 | $1.96 | 19.3x | +7% |
| FY2018 Q3 | Sep 30 2018 | $43.35 | $2.47 | 17.6x | -3% |
| FY2018 Q2 | Jun 30 2018 | $42.08 | $2.52 | 16.7x | -7% |
| FY2018 Q1 | Mar 31 2018 | $45.75 | $3.72 | 12.3x | -32% |
| FY2017 Q4 | Dec 31 2017 | $47.42 | $3.63 | 13.1x | -28% |
| FY2017 Q3 | Sep 30 2017 | $45.64 | $3.30 | 13.8x | -23% |
| FY2017 Q2 | Jun 30 2017 | $44.68 | $3.39 | 13.2x | -27% |
| FY2017 Q1 | Mar 31 2017 | $42.16 | $2.74 | 15.4x | -15% |
| FY2016 Q4 | Dec 31 2016 | $37.65 | $2.85 | 13.2x | -27% |
| FY2016 Q3 | Sep 30 2016 | $43.14 | $2.65 | 16.3x | -10% |
| FY2016 Q2 | - | $39.14 | $2.51 | 15.6x | -14% |
| FY2016 Q1 | - | $36.44 | $2.54 | 14.3x | -20% |
| FY2015 Q4 | - | $33.26 | $2.57 | 12.9x | -28% |
| FY2015 Q3 | Sep 26 2015 | $34.91 | $2.75 | 12.7x | -30% |
| FY2015 Q2 | Jun 27 2015 | $42.81 | $1.16 | 36.9x | +105% |
| FY2015 Q1 | Mar 28 2015 | $41.90 | $1.17 | 35.8x | +99% |
| FY2014 Q4 | Dec 31 2014 | $44.60 | $1.14 | 39.1x | +117% |
| FY2014 Q3 | Sep 27 2014 | $45.27 | $1.23 | 36.8x | +104% |
| FY2014 Q2 | Jun 28 2014 | $48.86 | $3.04 | 16.1x | -11% |
| FY2014 Q1 | Mar 29 2014 | $52.15 | $2.97 | 17.6x | -3% |
| FY2013 Q4 | - | $52.16 | $2.63 | 19.8x | +10% |
| FY2012 Q3 | Sep 29 2012 | $29.89 | $0.28 | 106.8x | +492% |
| FY2012 Q2 | Jun 30 2012 | $25.71 | $0.49 | 52.5x | +191% |
| FY2012 Q1 | Mar 31 2012 | $31.97 | $0.46 | 69.5x | +285% |
| FY2011 Q4 | Dec 31 2011 | $22.35 | $0.35 | 63.9x | +254% |
| FY2011 Q3 | Oct 01 2011 | $21.50 | $2.05 | 10.5x | -42% |
| FY2011 Q2 | Jul 02 2011 | $27.71 | $2.09 | 13.3x | -26% |
| FY2011 Q1 | Apr 02 2011 | $25.52 | $2.02 | 12.6x | -30% |
| FY2010 Q4 | Dec 31 2010 | $24.52 | $1.87 | 13.1x | -27% |
| FY2010 Q3 | Oct 02 2010 | $22.54 | $1.82 | 12.4x | -31% |
| FY2010 Q2 | Jul 03 2010 | $21.20 | $1.64 | 12.9x | -28% |
| FY2010 Q1 | Apr 03 2010 | $24.23 | $1.36 | 17.8x | -1% |
| FY2009 Q4 | - | $21.69 | $1.18 | 18.4x | +2% |
| FY2009 Q3 | Sep 26 2009 | $19.65 | $0.94 | 20.9x | +16% |
| FY2009 Q2 | Jun 27 2009 | $17.15 | $0.97 | 17.7x | -2% |
| FY2009 Q1 | Mar 28 2009 | $14.81 | $2.04 | 7.3x | -60% |
| FY2008 Q4 | Dec 31 2008 | $15.89 | $2.31 | 6.9x | -62% |
| FY2008 Q3 | Sep 27 2008 | $25.87 | $2.75 | 9.4x | -48% |
| FY2008 Q2 | Jun 28 2008 | $22.74 | $2.92 | 7.8x | -57% |
| FY2008 Q1 | Mar 29 2008 | $21.14 | $2.14 | 9.9x | -45% |
| FY2007 Q4 | Dec 31 2007 | $23.38 | $2.11 | 11.1x | -39% |
| FY2007 Q3 | Sep 29 2007 | $22.28 | $2.01 | 11.1x | -39% |
| FY2007 Q2 | Jun 30 2007 | $25.90 | $1.77 | 14.6x | -19% |
| FY2007 Q1 | Mar 31 2007 | $20.92 | $1.82 | 11.5x | -36% |
| FY2006 Q4 | Dec 31 2006 | $21.09 | $1.81 | 11.7x | -35% |
| FY2006 Q3 | Sep 30 2006 | $17.59 | $1.80 | 9.8x | -46% |
| FY2006 Q2 | Jul 01 2006 | $22.96 | $1.89 | 12.1x | -33% |
| FY2006 Q1 | Apr 01 2006 | $27.36 | $1.82 | 15.0x | -17% |
| FY2005 Q4 | Dec 31 2005 | $23.18 | $1.80 | 12.9x | -29% |
| FY2005 Q3 | Oct 01 2005 | $24.51 | $1.68 | 14.6x | -19% |
| FY2005 Q2 | Jul 02 2005 | $28.62 | $1.72 | 16.6x | -8% |
| FY2005 Q1 | Apr 02 2005 | $26.28 | $1.67 | 15.7x | -13% |
| FY2004 Q4 | Dec 31 2004 | $29.25 | $1.68 | 17.4x | -3% |
| FY2004 Q3 | Oct 02 2004 | $23.52 | $2.05 | 11.5x | -36% |
| FY2004 Q2 | Jul 03 2004 | $22.13 | $2.35 | 9.4x | -48% |
| FY2004 Q1 | Apr 03 2004 | $19.88 | $2.68 | 7.4x | -59% |
| FY2003 Q4 | Dec 31 2003 | $15.34 | $2.56 | 6.0x | -67% |
| FY2003 Q3 | Sep 27 2003 | $13.24 | $1.18 | 11.2x | -38% |
| FY2003 Q2 | Jun 28 2003 | $13.22 | $0.91 | 14.5x | -19% |
| FY2003 Q1 | Mar 29 2003 | $12.25 | $0.61 | 20.1x | +11% |
| FY2002 Q4 | - | $11.60 | $0.55 | 21.1x | +17% |
| FY2002 Q3 | Sep 28 2002 | $12.69 | $0.75 | 16.9x | -6% |
| FY2002 Q2 | Jun 29 2002 | $16.14 | $0.50 | 32.3x | +79% |
| FY2002 Q1 | Mar 30 2002 | $15.10 | $0.21 | 71.9x | +299% |
| FY2001 Q4 | Dec 31 2001 | $12.26 | $0.20 | 61.3x | +240% |
| FY2001 Q3 | Sep 29 2001 | $10.33 | $0.47 | 22.0x | +22% |
| FY2001 Q2 | Jun 30 2001 | $11.35 | $0.36 | 31.5x | +75% |
| FY2001 Q1 | Mar 31 2001 | $8.56 | $0.45 | 19.0x | +5% |
| FY2000 Q4 | Dec 31 2000 | $8.12 | $0.57 | 14.2x | -21% |
| FY2000 Q3 | Sep 30 2000 | $8.98 | $1.32 | 6.8x | -62% |
| FY2000 Q2 | Jul 01 2000 | $11.92 | $1.53 | 7.8x | -57% |
| FY2000 Q1 | Apr 01 2000 | $12.44 | $1.48 | 8.4x | -53% |
| FY1999 Q4 | Dec 31 1999 | $12.93 | $1.18 | 11.0x | -39% |
| FY1999 Q3 | Sep 25 1999 | $13.91 | $1.08 | 12.8x | -29% |
| FY1999 Q2 | Jun 26 1999 | $15.21 | $1.03 | 14.7x | -19% |
| FY1999 Q1 | Mar 27 1999 | $10.51 | $0.98 | 10.7x | -41% |
| FY1998 Q4 | - | $13.37 | $1.23 | 10.9x | -40% |
| FY1998 Q3 | Sep 30 1998 | $10.83 | $1.19 | 9.1x | -50% |
| FY1998 Q2 | - | $14.27 | $1.15 | 12.4x | -31% |
| FY1998 Q1 | - | $15.03 | $1.11 | 13.5x | -25% |
| FY1997 Q4 | Dec 31 1997 | $12.07 | $1.06 | 11.4x | -37% |
| FY1997 Q3 | - | $12.38 | $0.98 | 12.6x | -30% |
| FY1997 Q2 | Jun 30 1997 | $11.04 | $0.94 | 11.7x | -35% |
| FY1997 Q1 | Mar 31 1997 | $9.70 | $0.90 | 10.8x | -40% |
| FY1996 Q4 | - | $10.83 | $0.87 | 12.4x | -31% |
| FY1996 Q3 | Sep 30 1996 | $8.90 | $0.82 | 10.9x | -40% |
| FY1996 Q2 | Jun 30 1996 | $10.07 | $0.78 | 12.9x | -28% |
| FY1996 Q1 | Mar 31 1996 | $8.48 | $0.92 | 9.2x | -49% |
| FY1995 Q4 | Dec 31 1995 | $8.35 | $0.91 | 9.2x | -49% |
| FY1995 Q3 | Sep 30 1995 | $7.55 | $0.91 | 8.3x | -54% |
| FY1995 Q2 | Jun 30 1995 | $7.30 | $0.89 | 8.2x | -55% |
| FY1995 Q1 | Mar 31 1995 | $7.09 | $0.69 | 10.3x | -43% |
| FY1994 Q4 | Dec 31 1994 | $7.18 | $0.64 | 11.2x | -38% |
| FY1994 Q3 | Sep 30 1994 | $6.63 | $0.60 | 11.1x | -39% |
| FY1994 Q2 | - | $6.00 | $0.60 | 10.0x | -45% |
| FY1994 Q1 | - | $6.09 | $0.58 | 10.5x | -42% |
| FY1993 Q4 | Dec 31 1993 | $5.54 | $0.57 | 9.7x | -46% |
| FY1992 Q3 | Sep 30 1992 | $4.13 | $0.52 | 7.9x | -56% |
| FY1992 Q2 | - | $4.06 | $0.52 | 7.8x | -57% |
| FY1992 Q1 | - | $4.55 | $0.53 | 8.6x | -52% |
| FY1991 Q4 | - | $4.50 | $0.52 | 8.7x | -52% |
| FY1991 Q3 | Sep 30 1991 | $3.97 | $0.47 | 8.4x | -54% |
| FY1991 Q2 | Jun 30 1991 | $4.31 | $0.46 | 9.5x | -47% |
| FY1991 Q1 | Mar 31 1991 | $3.47 | $0.47 | 7.5x | -59% |
| FY1990 Q4 | Dec 31 1990 | $2.77 | $0.44 | 6.3x | -65% |
Average P/E for displayed period: 18.0x
Full Stock Analysis
Deep dive into PNR consensus models and risk factors.
Intrinsic Valuation
DCF models, multiple analysis, and analyst estimates.
Historical Returns
36+ years return with dividends reinvested.
DCA Calculator
See how regular investing compounds over time.
Peer Comparison
Compare growth, multiples, and margins vs sector.
PNR — Frequently Asked Questions
Quick answers to the most common questions about buying PNR stock.
What is PNR's P/E ratio?
Pentair plc (PNR) trailing twelve-month P/E ratio is 18.8x, based on TTM diluted EPS of $4.10. The 5-year average P/E is 21.4x and the historical range spans 12.6x to 28.0x.
Is PNR stock overvalued or undervalued?
PNR trades at 18.8x P/E, near its 5-year average of 21.4x. The 25th percentile ranking within the 12.6x–28.0x historical range places valuation within normal bounds.
Is PNR stock expensive?
PNR is fairly valued relative to its own history. The current P/E of 18.8x is near the 5-year average of 21.4x (25th percentile of historical range).
What is PNR's historical P/E range?
Over the past 5 years, PNR's P/E ratio has ranged from 12.6x to 28.0x, with a median of 22.1x and an average of 21.4x. The current P/E of 18.8x places the stock at the 25th percentile of this range. Full historical data spans 1990–2026.
How does PNR's P/E compare to the S&P 500?
PNR trades at 18.8x P/E versus the S&P 500 median of 24.4x. The 23% discount to the market suggests lower growth expectations or perceived higher risk.
How does PNR's valuation compare to Industrials peers?
Pentair plc P/E of 18.8x compares to the Industrials sector median of 25.6x. The discount suggests lower growth expectations, weaker margins, or higher perceived risk relative to peers. See the peer comparison table on this page for ticker-by-ticker P/E and PEG.
What is PNR's PEG ratio?
PNR PEG ratio is 1.43, based on a P/E of 18.8x and EPS growth of 5.9%. A PEG between 1 and 2 suggests valuation aligns with growth expectations — typically considered fair.
What is PNR's earnings yield?
PNR earnings yield is 5.33%, the inverse of its 18.8x P/E ratio. Earnings yield represents the percentage of each dollar invested that the company earns. It can be compared directly to bond yields to assess relative attractiveness of stocks versus fixed income.