PorvairLSE:PRV +4.17%94 Gross Margin % is 35.23% as of Nov. 2025, which is 6% above its 10-year median of 33.37. 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. Among 3,003 Industrial Products companies, Porvair ranks better than 70.66% on this metric.
Gross Margin % is calculated as gross profit divided by its revenue. Porvair's Gross Profit for the
six
months ended in Nov. 2025 was £33.9 Mil. Porvair's Revenue for the
six
months ended in Nov. 2025 was £96.3 Mil. Therefore, Porvair's Gross Margin % for the quarter that ended in Nov. 2025 was 35.23%.
The historical rank and industry rank for Porvair's Gross Margin % or its related term are showing as below:
LSE:PRV'
s Gross Margin % Range Over the Past 10 Years
Min: 32.09 Med: 33.37 Max: 35.39
Current: 35.39
During the past 13 years, the highestGross Margin % of Porvair was 35.39%. The lowest was 32.09%. And the median was 33.37%.
LSE:PRV's Gross Margin % is ranked better than 70.66% of 3003
companies
in the Industrial Products industry
Industry Median: 26.79
vs LSE:PRV: 35.39
Porvair had a gross margin of 35.23% for the quarter that ended in Nov. 2025 => Competition eroding margins
The 5-Year average Growth Rate of Gross Margin for Porvair was 1.90% per year.
Porvair (LSE:PRV) Gross Margin % Explanation
Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
Porvair had a gross margin of 35.23% for the quarter that ended in Nov. 2025 => Competition eroding margins
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
Porvair Gross Margin % Related Terms
Porvair Gross Margin % Historical Data
* Premium members only.
The historical data trend for Porvair's Gross 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: Gross Margin % Comparison
For the Pollution & Treatment Controls subindustry, Porvair's Gross Margin %, along with its competitors' market caps and Gross 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 Gross Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Porvair's Gross Margin % distribution charts can be found below:
* The bar in red indicates where Porvair's Gross 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.
A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
Porvair (LSE:PRV) has a Gross Margin % of 35.23% as of Nov. 2025. Gross margin is the ratio of total gross profit to net sales. View historical data on Porvair and its competitors. This is near median its historical median of 33.37. Over the past decade, Porvair's Gross Margin % has ranged from 32.09 to 35.39. According to the industry distribution chart, Porvair ranks #881 out of 3003 companies in the Industrial Products industry, placing it in the top 29.3%.
Is Porvair's Gross Margin % too high?
Porvair's current Gross Margin % of 35.23% is near median its 10-year median of 33.37. Over the past 10 years, this metric has ranged from a low of 32.09 to a high of 35.39. The Industrial Products industry median Gross Margin % is 26.79. Porvair's value of 35.23% is 31.5% above this industry median. Based on the distribution chart, Porvair ranks #881 out of 3003 companies in the Industrial Products industry, which is above the industry midpoint. 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 Gross Margin % compare to VLTO and ZWS?
According to the Industrial Products industry distribution chart, Porvair ranks #881 out of 3003 companies for Gross Margin %. This puts Porvair in the upper half of its industry. The industry median Gross Margin % is 26.79. Porvair's value of 35.23% is 31.5% above this benchmark. Historically, Porvair's own Gross Margin % has ranged from 32.09 to 35.39 over the past decade. While the company's 10-year median is 33.37 vs. the industry median of 26.79, 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 Gross Margin % for an Industrial Products company?
The median Gross Margin % among Industrial Products companies is 26.79, based on 3,003 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Porvair's current Gross Margin % of 35.23% is 31.5% 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Porvair and its competitors. For the Industrial Products industry, the median Gross Margin % is 26.79 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Porvair's current Gross Margin % is 35.23%, which is near median its own 10-year median of 33.37. 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 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 Gross Margin % is 35.23%, which is near median its 10-year median of 33.37 and 31.5% above the Industrial Products industry median of 26.79. 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 Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Porvair (LSE:PRV), the current Gross Margin % is 35.23% 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:
Gross Margin %: 35.23% (near median its 10-year median of 33.37)
GF Value™: £7.57 vs. price of £8.50 (12.3% above fair value)
Industry Position: 31.5% above the Industrial Products median (#881 of 3003)
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.
94GF Score
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