PorvairLSE:PRV +4.17%93 Net Margin % is 9.74% as of Nov. 2025, which is 22% above its 10-year median of 7.98. GuruFocus rates LSE:PRV with a GF Score™ of 93/100 and a GF Value™ of £7.57 (Fairly Valued). The stock has 1 warning sign investors should review. Among 3,039 Industrial Products companies, Porvair ranks better than 72.75% on this metric.
Net margin is calculated as Net Income divided by its Revenue. Porvair's Net Income for the
six
months ended in Nov. 2025 was £9.4 Mil. Porvair's Revenue for the
six
months ended in Nov. 2025 was £96.3 Mil. Therefore, Porvair's net margin for the quarter that ended in Nov. 2025 was 9.74%.
The historical rank and industry rank for Porvair's Net Margin % or its related term are showing as below:
LSE:PRV'
s Net Margin % Range Over the Past 10 Years
Min: 6.25 Med: 7.98 Max: 9.36
Current: 9.36
LSE:PRV's Net Margin % is ranked better than 72.75% of 3039
companies
in the Industrial Products industry
Industry Median: 4.54
vs LSE:PRV: 9.36
Porvair (LSE:PRV) Net Margin % Explanation
Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.
But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.
Porvair Net Margin % Related Terms
Porvair Net Margin % Historical Data
* Premium members only.
The historical data trend for Porvair's Net Margin % 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.
LSE:PRV vs VLTO, ZWS, CECO: Net Margin % Comparison
For the Pollution & Treatment Controls subindustry, Porvair's Net Margin %, along with its competitors' market caps and Net Margin % 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 Net Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Porvair's Net Margin % distribution charts can be found below:
* The bar in red indicates where Porvair's Net Margin % 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.
Porvair (LSE:PRV) has a Net Margin % of 9.74% as of Nov. 2025. Net margin is the ratio of total net income to net sales. View historical data on Porvair and its competitors. This is 22% above median its historical median of 7.98. Over the past decade, Porvair's Net Margin % has ranged from 6.25 to 9.36. According to the industry distribution chart, Porvair ranks #828 out of 3039 companies in the Industrial Products industry, placing it in the top 27.2%.
Is Porvair's Net Margin % too high?
Porvair's current Net Margin % of 9.74% is 22% above median its 10-year median of 7.98. Over the past 10 years, this metric has ranged from a low of 6.25 to a high of 9.36. The Industrial Products industry median Net Margin % is 4.54. Porvair's value of 9.74% is 114.5% above this industry median. Based on the distribution chart, Porvair ranks #828 out of 3039 companies in the Industrial Products industry, which is above the industry midpoint. Overall, Porvair has a GF Score™ of 93/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Porvair's Net Margin % compare to VLTO and ZWS?
According to the Industrial Products industry distribution chart, Porvair ranks #828 out of 3039 companies for Net Margin %. This puts Porvair in the upper half of its industry. The industry median Net Margin % is 4.54. Porvair's value of 9.74% is 114.5% above this benchmark. Historically, Porvair's own Net Margin % has ranged from 6.25 to 9.36 over the past decade. While the company's 10-year median is 7.98 vs. the industry median of 4.54, 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 Net Margin % for an Industrial Products company?
The median Net Margin % among Industrial Products companies is 4.54, based on 3,039 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Porvair's current Net Margin % of 9.74% is 114.5% 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 Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on Porvair and its competitors. For the Industrial Products industry, the median Net Margin % is 4.54 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Porvair's current Net Margin % is 9.74%, which is 22% above median its own 10-year median of 7.98. 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 Fairly Valued. 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 Net Margin % is 9.74%, which is 22% above median its 10-year median of 7.98 and 114.5% above the Industrial Products industry median of 4.54. 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 Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For Porvair (LSE:PRV), the current Net Margin % is 9.74% 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 Fairly Valued.
Key valuation signals for LSE:PRV:
Net Margin %: 9.74% (22% above median its 10-year median of 7.98)
GF Value™: £7.57 vs. price of £8.50 (12.3% above fair value)
Industry Position: 114.5% above the Industrial Products median (#828 of 3039)
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
Get the complete analysis for LSE:PRV
Net Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
LSE:PRV has been successfully added to your 
