PorvairLSE:PRV -1.69%93 OCF Margin % is 16.51% as of Nov. 2025, which is 59% above its 10-year median of 10.37. 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 3,037 Industrial Products companies, Porvair ranks better than 70.96% on this metric.
The historical rank and industry rank for Porvair's OCF Margin % or its related term are showing as below:
LSE:PRV'
s OCF Margin % Range Over the Past 10 Years
Min: 7.65 Med: 10.37 Max: 12.29
Current: 12.29
During the past 13 years, the highest OCF Margin % of Porvair was 12.29%. The lowest was 7.65%. And the median was 10.37%.
LSE:PRV's OCF Margin % is ranked better than 70.96% of 3037
companies
in the Industrial Products industry
Industry Median: 6.95
vs LSE:PRV: 12.29
Porvair OCF Margin % Related Terms
Porvair OCF Margin % Historical Data
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The historical data trend for Porvair's OCF 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: OCF Margin % Comparison
For the Pollution & Treatment Controls subindustry, Porvair's OCF Margin %, along with its competitors' market caps and OCF 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 OCF Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Porvair's OCF Margin % distribution charts can be found below:
* The bar in red indicates where Porvair's OCF 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 OCF Margin % of 16.51% as of Nov. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Porvair and its competitors. This is 59% above median its historical median of 10.37. Over the past decade, Porvair's OCF Margin % has ranged from 7.65 to 12.29. According to the industry distribution chart, Porvair ranks #882 out of 3037 companies in the Industrial Products industry, placing it in the top 29%.
Is Porvair's OCF Margin % too high?
Porvair's current OCF Margin % of 16.51% is 59% above median its 10-year median of 10.37. Over the past 10 years, this metric has ranged from a low of 7.65 to a high of 12.29. The Industrial Products industry median OCF Margin % is 6.95. Porvair's value of 16.51% is 137.6% above this industry median. Based on the distribution chart, Porvair ranks #882 out of 3037 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 OCF Margin % compare to VLTO and ZWS?
According to the Industrial Products industry distribution chart, Porvair ranks #882 out of 3037 companies for OCF Margin %. This puts Porvair in the upper half of its industry. The industry median OCF Margin % is 6.95. Porvair's value of 16.51% is 137.6% above this benchmark. Historically, Porvair's own OCF Margin % has ranged from 7.65 to 12.29 over the past decade. While the company's 10-year median is 10.37 vs. the industry median of 6.95, 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 OCF Margin % for an Industrial Products company?
The median OCF Margin % among Industrial Products companies is 6.95, based on 3,037 companies in the industry. Companies in the top quartile (top 25%) have a OCF Margin % significantly above this median, while those in the bottom quartile fall well below. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Porvair's current OCF Margin % of 16.51% is 137.6% 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 OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on Porvair and its competitors. For the Industrial Products industry, the median OCF Margin % is 6.95 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Porvair's current OCF Margin % is 16.51%, which is 59% above median its own 10-year median of 10.37. 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 £8.16 — trading 7.8% above its estimated fair value. The current OCF Margin % is 16.51%, which is 59% above median its 10-year median of 10.37 and 137.6% above the Industrial Products industry median of 6.95. 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 OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For Porvair (LSE:PRV), the current OCF Margin % is 16.51% 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 £8.16 is trading 7.8% above its estimated GF Value™ of £7.57.
GuruFocus considers Porvair to be Fairly Valued.
Key valuation signals for LSE:PRV:
OCF Margin %: 16.51% (59% above median its 10-year median of 10.37)
GF Value™: £7.57 vs. price of £8.16 (7.8% above fair value)
Industry Position: 137.6% above the Industrial Products median (#882 of 3037)
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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