Pentair (FRA:PNT) Cyclically Adjusted PB Ratio: 2.99 (As of Jul. 26, 2026) — 40% Above Median

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FRA:PNT Pentair PLC FRA:PNT
78 GF Score
Price €54.78
GF Value €77.79
Valuation Significantly Undervalued
! 1 Warning Sign
View Full Analysis

What is Pentair Cyclically Adjusted PB Ratio?

Pentair FRA:PNT +0.11% 78 Cyclically Adjusted PB Ratio is 2.99 as of Jul. 26, 2026, which is 40% above its 10-year median of 2.13. GuruFocus rates FRA:PNT with a GF Score™ of 78/100 and a GF Value™ of €77.79 (Significantly Undervalued). The stock has 1 warning sign investors should review. Among 2,278 Industrial Products companies, Pentair ranks worse than 62.12% on this metric.

As of today (2026-07-26), Pentair's current share price is €54.78. Pentair's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €18.31. Pentair's Cyclically Adjusted PB Ratio for today is 2.99.

The historical rank and industry rank for Pentair's Cyclically Adjusted PB Ratio or its related term are showing as below:

FRA:PNT' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.96   Med: 2.13   Max: 5.15
Current: 2.9

During the past years, Pentair's highest Cyclically Adjusted PB Ratio was 5.15. The lowest was 0.96. And the median was 2.13.

FRA:PNT's Cyclically Adjusted PB Ratio is ranked worse than
62.12% of 2278 companies
in the Industrial Products industry
Industry Median: 2.11 vs FRA:PNT: 2.90

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Pentair's adjusted book value per share data for the three months ended in Mar. 2026 was €20.394. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is €18.31 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Pentair  (FRA:PNT) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Pentair Cyclically Adjusted PB Ratio Related Terms


Pentair Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Pentair's Cyclically Adjusted PB Ratio can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Pentair Cyclically Adjusted PB Ratio Chart

Pentair Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.08 1.87 3.17 4.56 4.79

Pentair Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 3.99 4.67 5.09 4.79 4.02

FRA:PNT vs CR, GGG, WTS: Cyclically Adjusted PB Ratio Comparison

For the Specialty Industrial Machinery subindustry, Pentair's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Pentair Cyclically Adjusted PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Pentair's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Pentair's Cyclically Adjusted PB Ratio falls into.


FRA:PNT
78GF Score
Pentair PLC FRA:PNT
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Pentair Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Pentair's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=54.78/18.31
=2.99

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Pentair's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, Pentair's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book=Book Value per Share/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=20.394/140.8000*140.8000
=20.394

Current CPI (Mar. 2026) = 140.8000.

Pentair Quarterly Data

Book Value per Share CPI Adj_Book
201606 20.476 101.000 28.545
201609 21.352 101.500 29.619
201612 22.189 102.200 30.570
201703 22.445 102.700 30.772
201706 24.047 103.500 32.713
201709 23.140 104.300 31.238
201712 23.609 105.000 31.659
201803 21.457 105.100 28.745
201806 9.218 105.900 12.256
201809 9.282 106.600 12.260
201812 9.418 107.100 12.381
201903 9.630 107.000 12.672
201906 9.514 107.900 12.415
201909 10.095 108.400 13.112
201912 10.449 108.500 13.560
202003 10.335 108.600 13.399
202006 10.435 108.800 13.504
202009 10.462 109.200 13.489
202012 10.426 109.400 13.418
202103 11.088 109.700 14.231
202106 11.367 111.400 14.367
202109 12.010 112.400 15.045
202112 12.982 114.700 15.936
202203 13.746 116.500 16.613
202206 14.743 120.500 17.227
202209 16.204 122.300 18.655
202212 15.537 125.300 17.459
202303 15.908 126.800 17.664
202306 16.409 129.400 17.855
202309 17.237 130.100 18.655
202312 17.843 130.500 19.251
202403 18.437 131.600 19.726
202406 19.270 133.000 20.400
202409 19.079 133.500 20.122
202412 20.645 135.100 21.516
202503 20.429 136.100 21.134
202506 19.422 138.400 19.759
202509 19.693 138.900 19.962
202512 20.242 139.900 20.372
202603 20.394 140.800 20.394

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

What does a Cyclically Adjusted PB Ratio of 2.99 mean?
Pentair (FRA:PNT) has a Cyclically Adjusted PB Ratio of 2.99 as of Jul. 26, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Pentair and its competitors. This is 40% above median its historical median of 2.13. Over the past decade, Pentair's Cyclically Adjusted PB Ratio has ranged from 0.96 to 5.15. According to the industry distribution chart, Pentair ranks #1415 out of 2278 companies in the Industrial Products industry, placing it in the top 62.1%.
Is Pentair's Cyclically Adjusted PB Ratio too high?
Pentair's current Cyclically Adjusted PB Ratio of 2.99 is 40% above median its 10-year median of 2.13. Over the past 10 years, this metric has ranged from a low of 0.96 to a high of 5.15. The Industrial Products industry median Cyclically Adjusted PB Ratio is 2.11. Pentair's value of 2.99 is 41.7% above this industry median. Based on the distribution chart, Pentair ranks #1415 out of 2278 companies in the Industrial Products industry, which is below the industry midpoint. Overall, Pentair has a GF Score™ of 78/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Pentair's Cyclically Adjusted PB Ratio compare to CR and GGG?
According to the Industrial Products industry distribution chart, Pentair ranks #1415 out of 2278 companies for Cyclically Adjusted PB Ratio. This places Pentair in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 2.11. Pentair's value of 2.99 is 41.7% above this benchmark. Historically, Pentair's own Cyclically Adjusted PB Ratio has ranged from 0.96 to 5.15 over the past decade. While the company's 10-year median is 2.13 vs. the industry median of 2.11, Pentair has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for an Industrial Products company?
The median Cyclically Adjusted PB Ratio among Industrial Products companies is 2.11, based on 2,278 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Pentair's current Cyclically Adjusted PB Ratio of 2.99 is 41.7% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Pentair and its competitors. For the Industrial Products industry, the median Cyclically Adjusted PB Ratio is 2.11 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Pentair's current Cyclically Adjusted PB Ratio is 2.99, which is 40% above median its own 10-year median of 2.13. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Pentair stock overvalued right now?
Based on GuruFocus' analysis, Pentair (FRA:PNT) is currently considered Significantly Undervalued. The stock's GF Value™ is €77.79, compared to a current price of €54.78 — trading 29.6% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 2.99, which is 40% above median its 10-year median of 2.13 and 41.7% above the Industrial Products industry median of 2.11. Pentair's overall GF Score™ is 78/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Pentair (FRA:PNT), the current Cyclically Adjusted PB Ratio is 2.99 as of Jul. 26, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Pentair (FRA:PNT) Overvalued in 2026?

Based on GuruFocus' analysis, Pentair stock appears to be undervalued. The current stock price of €54.78 is trading 29.6% below its estimated GF Value™ of €77.79. GuruFocus considers Pentair to be Significantly Undervalued.

Key valuation signals for FRA:PNT:

  • Cyclically Adjusted PB Ratio: 2.99 (40% above median its 10-year median of 2.13)
  • GF Value™: €77.79 vs. price of €54.78 (29.6% below fair value)
  • GF Score™: 78/100 with 1 warning sign
  • Industry Position: 41.7% above the Industrial Products median (#1415 of 2278)

No single metric tells the full story. See the FRA:PNT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Pentair Business Description

Address 70 London Road, Regal House, Twickenham, London, GBR, TW13QS
Pentair is a global leader in the water treatment industry, with 10,000 employees and a presence in 25 countries. Its business is organized into three segments: pool, water technologies, and flow. The company offers a wide range of water solutions, including energy-efficient swimming pool equipment, filtration solutions, and commercial and industrial pumps. Pentair generated approximately $4.2 billion in revenue in 2025.
78GF Score

Get the complete analysis for FRA:PNT

Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€54.78
Price
€77.79
GF Value