Pentair (BSP:P1NR34) Cyclically Adjusted PB Ratio: 3.53 (As of Sep. 11, 2026) — 62% Above Median

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BSP:P1NR34 Pentair PLC BSP:P1NR34
71 GF Score
Price R$379.25
GF Value R$580.34
! 2 Warning Signs
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What is Pentair Cyclically Adjusted PB Ratio?

Pentair BSP:P1NR34 71 Cyclically Adjusted PB Ratio is 3.53 as of Sep. 11, 2026, which is 62% above its 10-year median of 2.18. GuruFocus rates BSP:P1NR34 with a GF Score™ of 71/100 and a GF Value™ of R$580.34. The stock has 2 warning signs investors should review. Among 2,098 Industrial Products companies, Pentair ranks worse than 57.96% on this metric.

As of today (2026-09-11), Pentair's current share price is R$379.25. Pentair's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was R$107.35. Pentair's Cyclically Adjusted PB Ratio for today is 3.53.

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

BSP:P1NR34' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.96   Med: 2.18   Max: 5.15
Current: 2.61

During the past years, Pentair's highest Cyclically Adjusted PB Ratio was 5.15. The lowest was 0.96. And the median was 2.18.

BSP:P1NR34's Cyclically Adjusted PB Ratio is ranked worse than
57.96% of 2098 companies
in the Industrial Products industry
Industry Median: 2.14 vs BSP:P1NR34: 2.61

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 Jun. 2026 was R$120.375. 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 R$107.35 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Pentair  (BSP:P1NR34) 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
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 4.67 5.09 4.79 4.02 3.53

BSP:P1NR34 vs FLS, RRX, DCI: 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.


BSP:P1NR34
71GF Score
Pentair PLC BSP:P1NR34
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
=379.25/107.35
=3.53

* 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 Jun. 2026 is calculated as:

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

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=120.375/142.3000*142.3000
=120.375

Current CPI (Jun. 2026) = 142.3000.

Pentair Quarterly Data

Book Value per Share CPI Adj_Book
201609 77.961 101.500 109.299
201612 78.504 102.200 109.306
201703 75.076 102.700 104.024
201706 89.041 103.500 122.421
201709 86.397 104.300 117.874
201712 92.063 105.000 124.767
201803 86.755 105.100 117.462
201806 40.609 105.900 54.567
201809 44.500 106.600 59.403
201812 41.609 107.100 55.284
201903 41.792 107.000 55.579
201906 41.450 107.900 54.665
201909 45.799 108.400 60.122
201912 47.654 108.500 62.499
202003 55.798 108.600 73.113
202006 60.972 108.800 79.746
202009 66.542 109.200 86.712
202012 65.254 109.400 84.878
202103 74.381 109.700 96.485
202106 68.869 111.400 87.972
202109 74.589 112.400 94.431
202112 82.954 114.700 102.915
202203 75.335 116.500 92.019
202206 78.665 120.500 92.897
202209 84.128 122.300 97.886
202212 86.330 125.300 98.043
202303 88.715 126.800 99.559
202306 86.287 129.400 94.889
202309 90.854 130.100 99.374
202312 95.341 130.500 103.962
202403 99.797 131.600 107.911
202406 111.723 133.000 119.535
202409 117.264 133.500 124.994
202412 131.887 135.100 138.916
202503 127.168 136.100 132.961
202506 124.231 138.400 127.732
202509 123.960 138.900 126.994
202512 129.317 139.900 131.535
202603 123.296 140.800 124.610
202606 120.375 142.300 120.375

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 3.53 mean?
Pentair (BSP:P1NR34) has a Cyclically Adjusted PB Ratio of 3.53 as of Sep. 11, 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 62% above median its historical median of 2.18. 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 #1216 out of 2098 companies in the Industrial Products industry, placing it in the top 58%.
Is Pentair's Cyclically Adjusted PB Ratio too high?
Pentair's current Cyclically Adjusted PB Ratio of 3.53 is 62% above median its 10-year median of 2.18. 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 2.14. Pentair's value of 3.53 is 65% above this industry median. Based on the distribution chart, Pentair ranks #1216 out of 2098 companies in the Industrial Products industry, which is below the industry midpoint. Overall, Pentair has a GF Score™ of 71/100, reflecting its overall financial health beyond just this single metric.
How does Pentair's Cyclically Adjusted PB Ratio compare to FLS and RRX?
According to the Industrial Products industry distribution chart, Pentair ranks #1216 out of 2098 companies for Cyclically Adjusted PB Ratio. This places Pentair in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 2.14. Pentair's value of 3.53 is 65% 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 2.18 vs. the industry median of 2.14, 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 2.14, based on 2,098 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 3.53 is 65% 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 2.14 — 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 3.53, which is 62% above median its own 10-year median of 2.18. 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?
Pentair (BSP:P1NR34) has a current Cyclically Adjusted PB Ratio of 3.53. The stock's GF Value™ is R$580.34, compared to a current price of R$379.25 — trading 34.7% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 3.53, which is 62% above median its 10-year median of 2.18 and 65% above the Industrial Products industry median of 2.14. Pentair's overall GF Score™ is 71/100 with 2 warning signs 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 (BSP:P1NR34), the current Cyclically Adjusted PB Ratio is 3.53 as of Sep. 11, 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 (BSP:P1NR34) Overvalued in 2026?

Based on GuruFocus' analysis, Pentair stock appears to be undervalued. The current stock price of R$379.25 is trading 34.7% below its estimated GF Value™ of R$580.34.

Key valuation signals for BSP:P1NR34:

  • Cyclically Adjusted PB Ratio: 3.53 (62% above median its 10-year median of 2.18)
  • GF Value™: R$580.34 vs. price of R$379.25 (34.7% below fair value)
  • GF Score™: 71/100 with 2 warning signs
  • Industry Position: 65% above the Industrial Products median (#1216 of 2098)

No single metric tells the full story. See the BSP:P1NR34 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.
71GF Score

Get the complete analysis for BSP:P1NR34

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

R$379.25
Price
R$580.34
GF Value