PEGRF (Pennon Group) Cyclically Adjusted PB Ratio: 0.89 (As of Jul. 14, 2026) — 58% Below Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

PEGRF Pennon Group PLC PEGRF
75 GF Score
Price $5.80
GF Value $6.24
Valuation Fairly Valued
! 9 Warning Signs
View Full Analysis

What is Pennon Group Cyclically Adjusted PB Ratio?

Pennon Group PEGRF 75 Cyclically Adjusted PB Ratio is 0.89 as of Jul. 14, 2026, which is 58% below its 10-year median of 2.11. GuruFocus rates PEGRF with a GF Score™ of 75/100 and a GF Value™ of $6.24 (Fairly Valued). The stock has 9 warning signs investors should review. Among 440 Utilities - Regulated companies, Pennon Group ranks better than 71.36% on this metric.

As of today (2026-07-14), Pennon Group's current share price is $5.80. Pennon Group's Cyclically Adjusted Book per Share for the fiscal year that ended in Mar26 was $6.52. Pennon Group's Cyclically Adjusted PB Ratio for today is 0.89.

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

PEGRF' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.72   Med: 2.11   Max: 3.59
Current: 0.9

During the past 13 years, Pennon Group's highest Cyclically Adjusted PB Ratio was 3.59. The lowest was 0.72. And the median was 2.11.

PEGRF's Cyclically Adjusted PB Ratio is ranked better than
71.36% of 440 companies
in the Utilities - Regulated industry
Industry Median: 1.525 vs PEGRF: 0.90

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.

Pennon Group's adjusted book value per share data of for the fiscal year that ended in Mar26 was $3.980. 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 $6.52 for the trailing ten years ended in Mar26.

Shiller PE for Stocks: The True Measure of Stock Valuation


Pennon Group  (OTCPK:PEGRF) 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.


Pennon Group Cyclically Adjusted PB Ratio Related Terms


Pennon Group Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Pennon Group'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.

Pennon Group Cyclically Adjusted PB Ratio Chart

Pennon Group Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.65 1.26 0.93 0.83 1.00

Pennon Group Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 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 0.93 0.00 0.83 0.00 1.00

PEGRF vs AWK, WTRG, AWR: Cyclically Adjusted PB Ratio Comparison

For the Utilities - Regulated Water subindustry, Pennon Group'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.


Pennon Group Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Pennon Group's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


PEGRF
75GF Score
Pennon Group PLC PEGRF
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Pennon Group 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.

Pennon Group's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=5.80/6.52
=0.89

* 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.

Pennon Group's Cyclically Adjusted Book per Share for the fiscal year that ended in Mar26 is calculated as:

For example, Pennon Group's adjusted Book Value per Share data for the fiscal year that ended in Mar26 was:

Adj_Book=Book Value per Share/CPI of Mar26 (Change)*Current CPI (Mar26)
=3.98/140.8000*140.8000
=3.980

Current CPI (Mar26) = 140.8000.

Pennon Group Annual Data

Book Value per Share CPI Adj_Book
201703 5.308 102.700 7.277
201803 6.424 105.100 8.606
201903 6.201 107.000 8.160
202003 5.933 108.600 7.692
202103 11.563 109.700 14.841
202203 4.983 116.500 6.022
202303 4.106 126.800 4.559
202403 4.057 131.600 4.341
202503 3.965 136.100 4.102
202603 3.980 140.800 3.980

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 0.89 mean?
Pennon Group (PEGRF) has a Cyclically Adjusted PB Ratio of 0.89 as of Jul. 14, 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 Pennon Group and its competitors. This is 58% below median its historical median of 2.11. Over the past decade, Pennon Group's Cyclically Adjusted PB Ratio has ranged from 0.72 to 3.59. According to the industry distribution chart, Pennon Group ranks #126 out of 440 companies in the Utilities - Regulated industry, placing it in the top 28.6%.
Is Pennon Group's Cyclically Adjusted PB Ratio too high?
Pennon Group's current Cyclically Adjusted PB Ratio of 0.89 is 58% below median its 10-year median of 2.11. Over the past 10 years, this metric has ranged from a low of 0.72 to a high of 3.59. The Utilities - Regulated industry median Cyclically Adjusted PB Ratio is 1.53. Pennon Group's value of 0.89 is 41.6% below this industry median. Based on the distribution chart, Pennon Group ranks #126 out of 440 companies in the Utilities - Regulated industry, which is above the industry midpoint. Overall, Pennon Group has a GF Score™ of 75/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Pennon Group's Cyclically Adjusted PB Ratio compare to AWK and WTRG?
According to the Utilities - Regulated industry distribution chart, Pennon Group ranks #126 out of 440 companies for Cyclically Adjusted PB Ratio. This puts Pennon Group in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.53. Pennon Group's value of 0.89 is 41.6% below this benchmark. Historically, Pennon Group's own Cyclically Adjusted PB Ratio has ranged from 0.72 to 3.59 over the past decade. While the company's 10-year median is 2.11 vs. the industry median of 1.53, Pennon Group has consistently been below 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 Utilities - Regulated company?
The median Cyclically Adjusted PB Ratio among Utilities - Regulated companies is 1.53, based on 440 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. Pennon Group's current Cyclically Adjusted PB Ratio of 0.89 is 41.6% below 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 Pennon Group and its competitors. For the Utilities - Regulated industry, the median Cyclically Adjusted PB Ratio is 1.53 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Pennon Group's current Cyclically Adjusted PB Ratio is 0.89, which is 58% below median its own 10-year median of 2.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Pennon Group stock overvalued right now?
Based on GuruFocus' analysis, Pennon Group (PEGRF) is currently considered Fairly Valued. The stock's GF Value™ is $6.24, compared to a current price of $5.80 — trading 7.1% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 0.89, which is 58% below median its 10-year median of 2.11 and 41.6% below the Utilities - Regulated industry median of 1.53. Pennon Group's overall GF Score™ is 75/100 with 9 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 Pennon Group (PEGRF), the current Cyclically Adjusted PB Ratio is 0.89 as of Jul. 14, 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 Pennon Group (PEGRF) Overvalued in 2026?

Based on GuruFocus' analysis, Pennon Group stock appears to be undervalued. The current stock price of $5.80 is trading 7.1% below its estimated GF Value™ of $6.24. GuruFocus considers Pennon Group to be Fairly Valued.

Key valuation signals for PEGRF:

  • Cyclically Adjusted PB Ratio: 0.89 (58% below median its 10-year median of 2.11)
  • GF Value™: $6.24 vs. price of $5.80 (7.1% below fair value)
  • GF Score™: 75/100 with 9 warning signs
  • Industry Position: 41.6% below the Utilities - Regulated median (#126 of 440)

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


Pennon Group Business Description

Address Rydon Lane, Peninsula House, Exeter, Devon, GBR, EX2 7HR
Pennon Group PLC is a British water and environmental utility infrastructure company that operates mainly in the United Kingdom. It has smaller operations in the European Union, China, and other countries. The company operates through Water, Non-household retail, and other segments. The water business comprises the regulated water and wastewater services undertaken by South West Water. The non-household retail business comprises the services provided by Pennon Water Services in the non-household water and wastewater retail market. The majority of revenue is derived from the water division.
75GF Score

Get the complete analysis for PEGRF

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

$5.80
Price
$6.24
GF Value