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.
The historical rank and industry rank for White Mountains Insurance Group's Median PS Value or its related term are showing as below:
WTM'
s Price-to-Median-PS-Value Range Over the Past 10 Years
Min: 0.35 Med: 1.11 Max: 28.04
Current: 0.41
During the past 13 years, the highest Price to Median PS Value of White Mountains Insurance Group was 28.04. The lowest was 0.35. And the median was 1.11.
WTM's Price-to-Median-PS-Value is ranked better than 90.38% of 343
companies
in the Insurance industry
Industry Median: 0.99
vs WTM: 0.41
White Mountains Insurance Group (NYSE:WTM) 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.
White Mountains Insurance Group's Price to Median PS Value for today is calculated as
Price to Median PS Value
=
Share Price
/
Median PS Value
=
2021.855
/
4,897.82
=
0.41
* 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.
White Mountains Insurance Group Median PS Value Related Terms
White Mountains Insurance Group Median PS Value Historical Data
* 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.
White Mountains Insurance Group Median PS Value Chart
For the Insurance - Property & Casualty subindustry, White Mountains Insurance Group'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.
White Mountains Insurance Group Price-to-Median-PS-Value vs Insurance Industry
For the Insurance industry and Financial Services sector, White Mountains Insurance Group's Price-to-Median-PS-Value distribution charts can be found below:
* The bar in red indicates where White Mountains Insurance Group's Price-to-Median-PS-Value falls into.
10-Year Median PS Ratio is 4.3615.
White Mountains Insurance Group's Revenue per Share for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $1122.966.
* 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.
White Mountains Insurance Group (WTM) has a Median PS Value of $4,897.82 as of Jun. 25, 2026. Median price-sales value is the stock value based on a company's 10-year median price-sales ratio, View historical data on White Mountains Insurance Group and its competitors. This is 441145% above median its historical median of 1.11. Over the past decade, White Mountains Insurance Group's Median PS Value has ranged from 0.35 to 28.04. According to the industry distribution chart, White Mountains Insurance Group ranks #33 out of 343 companies in the Insurance industry, placing it in the top 9.6%.
Is White Mountains Insurance Group's Median PS Value too high?
White Mountains Insurance Group's current Median PS Value of $4,897.82 is 441145% above median its 10-year median of 1.11. Over the past 10 years, this metric has ranged from a low of 0.35 to a high of 28.04. The Insurance industry median Median PS Value is 0.99. White Mountains Insurance Group's value of $4,897.82 is 494629.3% above this industry median. Based on the distribution chart, White Mountains Insurance Group ranks #33 out of 343 companies in the Insurance industry, which is in the top quartile — a strong position relative to peers. Overall, White Mountains Insurance Group has a GF Score™ of 76/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does White Mountains Insurance Group's Median PS Value compare to SIGI and MCY?
According to the Insurance industry distribution chart, White Mountains Insurance Group ranks #33 out of 343 companies for Median PS Value. This places White Mountains Insurance Group in the top 10% of its industry — outperforming the majority of peers. The industry median Median PS Value is 0.99. White Mountains Insurance Group's value of $4,897.82 is 494629.3% above this benchmark. Historically, White Mountains Insurance Group's own Median PS Value has ranged from 0.35 to 28.04 over the past decade. While the company's 10-year median is 1.11 vs. the industry median of 0.99, White Mountains Insurance Group 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 Median PS Value for an Insurance company?
The median Median PS Value among Insurance companies is 0.99, based on 343 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. White Mountains Insurance Group's current Median PS Value of $4,897.82 is 494629.3% 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 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 White Mountains Insurance Group and its competitors. For the Insurance industry, the median Median PS Value is 0.99 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. White Mountains Insurance Group's current Median PS Value is $4,897.82, which is 441145% above median its own 10-year median of 1.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is White Mountains Insurance Group stock overvalued right now?
Based on GuruFocus' analysis, White Mountains Insurance Group (WTM) is currently considered Modestly Undervalued. The stock's GF Value™ is $2,346.07, compared to a current price of $2,021.86 — trading 13.8% below its estimated fair value. The current Median PS Value is $4,897.82, which is 441145% above median its 10-year median of 1.11 and 494629.3% above the Insurance industry median of 0.99. White Mountains Insurance Group's overall GF Score™ is 76/100 with 2 warning signs 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 White Mountains Insurance Group (WTM), the current Median PS Value is $4,897.82 as of Jun. 25, 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 White Mountains Insurance Group (WTM) Overvalued in 2026?
Based on GuruFocus' analysis, White Mountains Insurance Group stock appears to be undervalued.
The current stock price of $2,021.86 is trading 13.8% below its estimated GF Value™ of $2,346.07.
GuruFocus considers White Mountains Insurance Group to be Modestly Undervalued.
Key valuation signals for WTM:
Median PS Value: $4,897.82 (441145% above median its 10-year median of 1.11)
GF Value™: $2,346.07 vs. price of $2,021.86 (13.8% below fair value)
Industry Position: 494629.3% above the Insurance median (#33 of 343)
No single metric tells the full story. See the WTM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
White Mountains Insurance Group Business Description
White Mountains Insurance Group Ltd is engaged in the business of making opportunistic and value-oriented acquisitions of businesses and assets in the insurance, financial services, and related sectors, operating these businesses and assets through its subsidiaries and, if and when attractive exit valuations become available, disposing of these businesses and assets. The company conducts its business in five areas: property and casualty insurance and reinsurance, municipal bond reinsurance, capital solutions for asset and wealth management firms, property and casualty insurance distribution, and other operations. The company has four reportable segments: Ark/WM Outrigger, HG Global, Kudu and Distinguished.
76GF Score
Get the complete analysis for WTM
Median PS Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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