Porvair (LSE:PRV) ROE % Adjusted to Book Value: 5.20% (As of Nov. 2025)


LSE:PRV Porvair PLC LSE:PRV
94 GF Score
Price £8.50
GF Value £7.57
Valuation Modestly Overvalued
! 5 Warning Signs
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What is Porvair ROE % Adjusted to Book Value?

Porvair LSE:PRV +4.17% 94 ROE % Adjusted to Book Value is 5.20% as of Nov. 2025. GuruFocus rates LSE:PRV with a GF Score™ of 94/100 and a GF Value™ of £7.57 (Modestly Overvalued). The stock has 5 warning signs investors should review.

Porvair's ROE % for the quarter that ended in Nov. 2025 was 11.59%. Porvair's PB Ratio for the quarter that ended in Nov. 2025 was 2.23. Porvair's ROE % Adjusted to Book Value for the quarter that ended in Nov. 2025 was 5.20%.


Porvair ROE % Adjusted to Book Value Related Terms


Porvair ROE % Adjusted to Book Value Historical Data

* Premium members only.

The historical data trend for Porvair's ROE % Adjusted to Book Value 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.

Porvair ROE % Adjusted to Book Value Chart

Porvair Annual Data
Trend Nov16 Nov17 Nov18 Nov19 Nov20 Nov21 Nov22 Nov23 Nov24 Nov25
ROE % Adjusted to Book Value
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.96 6.42 6.16 5.70 5.08

Porvair Semi-Annual Data
May16 Nov16 May17 Nov17 May18 Nov18 May19 Nov19 May20 Nov20 May21 Nov21 May22 Nov22 May23 Nov23 May24 Nov24 May25 Nov25
ROE % Adjusted to Book Value 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 5.38 5.17 5.53 4.73 5.20

LSE:PRV vs VLTO, ZWS, CECO: ROE % Adjusted to Book Value Comparison

For the Pollution & Treatment Controls subindustry, Porvair's ROE % Adjusted to Book Value, along with its competitors' market caps and ROE % Adjusted to Book Value 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.


Porvair ROE % Adjusted to Book Value vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Porvair's ROE % Adjusted to Book Value distribution charts can be found below:

* The bar in red indicates where Porvair's ROE % Adjusted to Book Value falls into.


LSE:PRV
94GF Score
Porvair PLC LSE:PRV
ROE % Adjusted to Book Value is just one metric. See GF Score™, valuation, warning signs, and more.
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Porvair ROE % Adjusted to Book Value Calculation

Porvair's ROE % Adjusted to Book Value for the fiscal year that ended in Nov. 2025 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=11.32% / 2.23
=5.08%

Porvair's ROE % Adjusted to Book Value for the quarter that ended in Nov. 2025 is calculated as

ROE % Adjusted to Book Value=ROE % / PB Ratio
=11.59% / 2.23
=5.20%

* 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.

What does a ROE % Adjusted to Book Value of 5.20% mean?
Porvair (LSE:PRV) has a ROE % Adjusted to Book Value of 5.20% as of Nov. 2025. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on Porvair and its competitors.
Is Porvair's ROE % Adjusted to Book Value too high?
Porvair's current ROE % Adjusted to Book Value is 5.20%. Overall, Porvair has a GF Score™ of 94/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Porvair's ROE % Adjusted to Book Value compare to VLTO and ZWS?
Porvair's ROE % Adjusted to Book Value of 5.20% can be compared against companies in the Industrial Products industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROE % Adjusted to Book Value for an Industrial Products company?
A good ROE % Adjusted to Book Value depends on the Industrial Products industry context. However, ROE % Adjusted to Book Value should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high ROE % Adjusted to Book Value mean?
A high ROE % Adjusted to Book Value can signal that a stock is expensive relative to its fundamentals. Return on equity adjusted to book is the ratio of return on equity to price-book ratio. View historical data on Porvair and its competitors. Porvair's current ROE % Adjusted to Book Value is 5.20%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Porvair stock overvalued right now?
Based on GuruFocus' analysis, Porvair (LSE:PRV) is currently considered Modestly Overvalued. The stock's GF Value™ is £7.57, compared to a current price of £8.50 — trading 12.3% above its estimated fair value. The current ROE % Adjusted to Book Value is 5.20%. Porvair's overall GF Score™ is 94/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % Adjusted to Book Value calculated?
ROE % Adjusted to Book Value is calculated from a company's financial statements. For Porvair (LSE:PRV), the current ROE % Adjusted to Book Value is 5.20% as of Nov. 2025. 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 Porvair (LSE:PRV) Overvalued in 2026?

Based on GuruFocus' analysis, Porvair stock appears to be overvalued. The current stock price of £8.50 is trading 12.3% above its estimated GF Value™ of £7.57. GuruFocus considers Porvair to be Modestly Overvalued.

Key valuation signals for LSE:PRV:

  • ROE % Adjusted to Book Value: 5.20%
  • GF Value™: £7.57 vs. price of £8.50 (12.3% above fair value)
  • GF Score™: 94/100 with 5 warning signs

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


Porvair Business Description

Other Exchanges PVARF:USAPRVl:UK
Address 7 Regis Place, Bergen Way, King\'s Lynn, Norfolk, GBR, PE30 2JN
Porvair PLC is an environmental treatment control company. It develops filtration solutions to be used by various types of industries. The company caters to its clients through three divisions: Aerospace and Industrial, Laboratory, and Metal Melt Quality. The Aerospace and Industrial Division is a key revenue generator, principally serving the aviation, energy, and industrial markets. Laboratory Division principally serving the bioscience and environmental laboratory instrument and consumables market. Metal Melt Quality Division principally serves the world aluminium, North American Free Trade Agreement (NAFTA), iron foundry, and superalloys markets. The company generates the majority of its manufacturing revenue from sales in the United States.
94GF Score

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ROE % Adjusted to Book Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

£8.50
Price
£7.57
GF Value