PorvairLSE:PRV +4.17%93 ROE % is 11.59% as of Nov. 2025, which is 1% below its 10-year median of 11.71. GuruFocus rates LSE:PRV with a GF Score™ of 93/100 and a GF Value™ of £7.57 (Modestly Overvalued). The stock has 1 warning sign investors should review. Among 3,009 Industrial Products companies, Porvair ranks better than 72.95% on this metric.
ROE % is calculated as Net Income divided by its average Total Stockholders Equity over a certain period of time. Porvair's annualized net income for the quarter that ended in Nov. 2025 was £18.8 Mil. Porvair's average Total Stockholders Equity over the quarter that ended in Nov. 2025 was £161.9 Mil. Therefore, Porvair's annualized ROE % for the quarter that ended in Nov. 2025 was 11.59%.
The historical rank and industry rank for Porvair's ROE % or its related term are showing as below:
LSE:PRV'
s ROE % Range Over the Past 10 Years
Min: 8.73 Med: 11.71 Max: 12.26
Current: 11.42
During the past 13 years, Porvair's highest ROE % was 12.26%. The lowest was 8.73%. And the median was 11.71%.
LSE:PRV's ROE % is ranked better than 72.95% of 3009
companies
in the Industrial Products industry
Industry Median: 5.91
vs LSE:PRV: 11.42
Porvair (LSE:PRV) ROE % Explanation
ROE % measures the rate of return on the ownership interest (shareholder's equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' equity (also known as net assets or assets minus liabilities). ROE % shows how well a company uses investment funds to generate earnings growth. ROE %s between 15% and 20% are considered desirable.
The factors that affect a company's ROE % can be illustrated with the three-step DuPont Analysis:
Note:
The net income data used here is two times the semi-annual (Nov. 2025) net income data. The Revenue data used here is two times the semi-annual (Nov. 2025) revenue data. The same rule applies to Pre-Tax Income and Operating Income.
* In the five-step DuPont Analysis, Operating Income is only available for non-financial companies. Thus, for Insurance companies, we use EBIT as a substitution of Operating Income. For Banks, both Operating Income and EBIT is unavailable. Thus we combined Interest Burden and Operating Margin % into Pretax Margin %, and the DuPont Analysis is divided into four components instead.
* 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.
Be Aware
Net Income is used.
Because a company can increase its ROE % by having more financial leverage, it is important to watch the equity multiplier when investing in high ROE % companies. Like ROA %, ROE % is calculated with only 12 months data. Fluctuations in company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
Asset light businesses require very few assets to generate very high earnings. Their ROE %s can be extremely high.
Porvair ROE % Related Terms
Porvair ROE % Historical Data
* Premium members only.
The historical data trend for Porvair's ROE % 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.
For the Pollution & Treatment Controls subindustry, Porvair's ROE %, along with its competitors' market caps and ROE % 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 % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Porvair's ROE % distribution charts can be found below:
* The bar in red indicates where Porvair's ROE % falls into.
* 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.
In the calculation of annual ROE %, the net income of the last fiscal year and the average total shareholder equity over the fiscal year are used. In calculating the quarterly data,
the net income data used here is two times the semi-annual (Nov. 2025) net income data.
ROE % is displayed in the 30-year financial page.
Porvair (LSE:PRV) has a ROE % of 11.59% as of Nov. 2025. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Porvair and its competitors. This is near median its historical median of 11.71. Over the past decade, Porvair's ROE % has ranged from 8.73 to 12.26. According to the industry distribution chart, Porvair ranks #814 out of 3009 companies in the Industrial Products industry, placing it in the top 27.1%.
Is Porvair's ROE % too high?
Porvair's current ROE % of 11.59% is near median its 10-year median of 11.71. Over the past 10 years, this metric has ranged from a low of 8.73 to a high of 12.26. The Industrial Products industry median ROE % is 5.91. Porvair's value of 11.59% is 96.1% above this industry median. Based on the distribution chart, Porvair ranks #814 out of 3009 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Porvair has a GF Score™ of 93/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Porvair's ROE % compare to VLTO and ZWS?
According to the Industrial Products industry distribution chart, Porvair ranks #814 out of 3009 companies for ROE %. This puts Porvair in the upper half of its industry. The industry median ROE % is 5.91. Porvair's value of 11.59% is 96.1% above this benchmark. Historically, Porvair's own ROE % has ranged from 8.73 to 12.26 over the past decade. While the company's 10-year median is 11.71 vs. the industry median of 5.91, Porvair 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 ROE % for an Industrial Products company?
The median ROE % among Industrial Products companies is 5.91, based on 3,009 companies in the industry. Companies in the top quartile (top 25%) have a ROE % significantly above this median, while those in the bottom quartile fall well below. However, ROE % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Porvair's current ROE % of 11.59% is 96.1% 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 ROE % mean?
A high ROE % can signal that a stock is expensive relative to its fundamentals. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on Porvair and its competitors. For the Industrial Products industry, the median ROE % is 5.91 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Porvair's current ROE % is 11.59%, which is near median its own 10-year median of 11.71. 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 % is 11.59%, which is near median its 10-year median of 11.71 and 96.1% above the Industrial Products industry median of 5.91. Porvair's overall GF Score™ is 93/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % calculated?
ROE % is calculated from a company's financial statements. For Porvair (LSE:PRV), the current ROE % is 11.59% 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 %: 11.59% (near median its 10-year median of 11.71)
GF Value™: £7.57 vs. price of £8.50 (12.3% above fair value)
Industry Position: 96.1% above the Industrial Products median (#814 of 3009)
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 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.
93GF Score
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