PorvairLSE:PRV -1.69%93 Median PS Value is £7.77 as of Jun. 26, 2026, which is 100% below its 10-year median of 1.15. 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 1,643 Industrial Products companies, Porvair ranks better than 56.54% on this metric.
This valuation method assumes that the stock valuation will revert to its historical (10-Year) median in terms of PS Ratio. The reason we use PS Ratio instead of PE Ratio or PB Ratio is because PS Ratio is independent of profit margin, and can be applied to a broader range of situations.
Median PS Value is calculated as trailing twelve months (TTM) Revenue per Share times 10-Year median PS Ratio. Porvair's Revenue per Share for the trailing twelve months (TTM) ended in Nov. 2025 was £4.202. Porvair's 10-Year median PS Ratio is 1.8491. Therefore, the Median PS Value for today is £7.77.
As of today (2026-06-26), Porvair's share price is £8.16. Porvair's Median PS Value is £7.77. Therefore, Porvair's Price to Median PS Value for today is 1.05.
The historical rank and industry rank for Porvair's Median PS Value or its related term are showing as below:
LSE:PRV'
s Price-to-Median-PS-Value Range Over the Past 10 Years
Min: 0.8 Med: 1.15 Max: 1.81
Current: 1.05
During the past 13 years, the highest Price to Median PS Value of Porvair was 1.81. The lowest was 0.80. And the median was 1.15.
LSE:PRV's Price-to-Median-PS-Value is ranked better than 56.54% of 1643
companies
in the Industrial Products industry
Industry Median: 1.14
vs LSE:PRV: 1.05
Porvair (LSE:PRV) Median PS Value Explanation
This valuation method assumes that the stock valuation will revert to its historical (10-Year) mean in terms of PS Ratio. The reason we use PS Ratio instead of PE Ratio or PB Ratio
is because PS Ratio is independent of profit margin, and can be applied to a broader range of situations.
It also assumes that over time the profit margin is constant. If a company increases its profit margin to a sustainable level, this value might under-estimate its value. If it has permanent declined profit margins, this may over-estimate the company's value.
Porvair's Price to Median PS Value for today is calculated as
Price to Median PS Value
=
Share Price
/
Median PS Value
=
8.16
/
7.77
=
1.05
* 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 Median PS Value Related Terms
Porvair Median PS Value Historical Data
* Premium members only.
The historical data trend for Porvair's Median PS 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.
LSE:PRV vs VLTO, ZWS, CECO: Median PS Value Comparison
For the Pollution & Treatment Controls subindustry, Porvair's Price-to-Median-PS-Value, along with its competitors' market caps and Price-to-Median-PS-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 Price-to-Median-PS-Value vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Porvair's Price-to-Median-PS-Value distribution charts can be found below:
* The bar in red indicates where Porvair's Price-to-Median-PS-Value falls into.
10-Year Median PS Ratio is 1.8491.
For company reported semi-annually, GuruFocus uses latest annual data as the TTM data. Porvair's Revenue per Share for the trailing twelve months (TTM) ended in Nov. 2025 was £4.202.
* 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 Median PS Value of £7.77 as of Jun. 26, 2026. Median price-sales value is the stock value based on a company's 10-year median price-sales ratio, View historical data on Porvair and its competitors. This is 576% above median its historical median of 1.15. Over the past decade, Porvair's Median PS Value has ranged from 0.80 to 1.81. According to the industry distribution chart, Porvair ranks #714 out of 1643 companies in the Industrial Products industry, placing it in the top 43.5%.
Is Porvair's Median PS Value too high?
Porvair's current Median PS Value of £7.77 is 576% above median its 10-year median of 1.15. Over the past 10 years, this metric has ranged from a low of 0.80 to a high of 1.81. Based on the distribution chart, Porvair ranks #714 out of 1643 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 Median PS Value compare to VLTO and ZWS?
According to the Industrial Products industry distribution chart, Porvair ranks #714 out of 1643 companies for Median PS Value. This puts Porvair in the upper half of its industry. The industry median Median PS Value is 1.14. Historically, Porvair's own Median PS Value has ranged from 0.80 to 1.81 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Median PS Value for an Industrial Products company?
The median Median PS Value among Industrial Products companies is 1.14, based on 1,643 companies in the industry. Companies in the top quartile (top 25%) have a Median PS Value significantly above this median, while those in the bottom quartile fall well below. However, Median PS 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 Median PS Value mean?
A high Median PS Value can signal that a stock is expensive relative to its fundamentals. Median price-sales value is the stock value based on a company's 10-year median price-sales ratio, View historical data on Porvair and its competitors. For the Industrial Products industry, the median Median PS Value is 1.14 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Porvair's current Median PS Value is £7.77, which is 576% above median its own 10-year median of 1.15. 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 Median PS Value is £7.77, which is 576% above median its 10-year median of 1.15. 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 Median PS Value calculated?
Median PS Value is calculated from a company's financial statements. For Porvair (LSE:PRV), the current Median PS Value is £7.77 as of Jun. 26, 2026. 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:
Median PS Value: £7.77 (576% above median its 10-year median of 1.15)
GF Value™: £7.57 vs. price of £8.16 (7.8% above fair value)
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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