White Mountains Insurance Group (FRA:WNI) Cyclically Adjusted PB Ratio: 1.38 (As of Aug. 16, 2026) — Near Median

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FRA:WNI White Mountains Insurance Group Ltd FRA:WNI
63 GF Score
Price €1,820.00
GF Value €2,094.49
Valuation Modestly Undervalued
! 4 Warning Signs
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What is White Mountains Insurance Group Cyclically Adjusted PB Ratio?

White Mountains Insurance Group FRA:WNI +2.25% 63 Cyclically Adjusted PB Ratio is 1.38 as of Aug. 16, 2026, which is at its 10-year median of 1.38. GuruFocus rates FRA:WNI with a GF Score™ of 63/100 and a GF Value™ of €2,094.49 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 415 Insurance companies, White Mountains Insurance Group ranks better than 50.84% on this metric.

As of today (2026-08-16), White Mountains Insurance Group's current share price is €1820.00. White Mountains Insurance Group's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was €1,317.17. White Mountains Insurance Group's Cyclically Adjusted PB Ratio for today is 1.38.

The historical rank and industry rank for White Mountains Insurance Group's Cyclically Adjusted PB Ratio or its related term are showing as below:

FRA:WNI' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.94   Med: 1.38   Max: 1.64
Current: 1.4

During the past years, White Mountains Insurance Group's highest Cyclically Adjusted PB Ratio was 1.64. The lowest was 0.94. And the median was 1.38.

FRA:WNI's Cyclically Adjusted PB Ratio is ranked better than
50.84% of 415 companies
in the Insurance industry
Industry Median: 1.41 vs FRA:WNI: 1.40

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

White Mountains Insurance Group's adjusted book value per share data for the three months ended in Jun. 2026 was €1,959.382. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is €1,317.17 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


White Mountains Insurance Group  (FRA:WNI) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


White Mountains Insurance Group Cyclically Adjusted PB Ratio Related Terms


White Mountains Insurance Group Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for White Mountains Insurance Group's Cyclically Adjusted PB Ratio 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.

White Mountains Insurance Group Cyclically Adjusted PB Ratio Chart

White Mountains Insurance Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.08 1.34 1.29 1.51 1.46

White Mountains Insurance Group Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 1.32 1.20 1.46 1.48 1.36

FRA:WNI vs RLI, SIGI, MCY: Cyclically Adjusted PB Ratio Comparison

For the Insurance - Property & Casualty subindustry, White Mountains Insurance Group's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio vs Insurance Industry

For the Insurance industry and Financial Services sector, White Mountains Insurance Group's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where White Mountains Insurance Group's Cyclically Adjusted PB Ratio falls into.


FRA:WNI
63GF Score
White Mountains Insurance Group Ltd FRA:WNI
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

White Mountains Insurance Group Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

White Mountains Insurance Group's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=1820.00/1317.17
=1.38

* 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's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, White Mountains Insurance Group's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1959.382/333.9520*333.9520
=1,959.382

Current CPI (Jun. 2026) = 333.9520.

White Mountains Insurance Group Quarterly Data

Book Value per Share CPI Adj_Book
201609 710.660 241.428 983.011
201612 744.172 241.432 1,029.349
201703 741.212 243.801 1,015.292
201706 709.995 244.955 967.950
201709 776.086 246.819 1,050.063
201712 786.977 246.524 1,066.073
201803 743.147 249.554 994.476
201806 791.423 251.989 1,048.845
201809 803.926 252.439 1,063.515
201812 787.610 251.233 1,046.932
201903 868.585 254.202 1,141.083
201906 873.691 256.143 1,139.094
201909 910.395 256.759 1,184.100
201912 921.617 256.974 1,197.693
202003 888.170 258.115 1,149.124
202006 906.321 257.797 1,174.054
202009 932.668 260.280 1,196.659
202012 1,035.052 260.474 1,327.033
202103 1,034.360 264.877 1,304.102
202106 1,062.048 271.696 1,305.404
202109 987.936 274.310 1,202.739
202112 1,040.447 278.802 1,246.258
202203 1,074.224 287.504 1,247.771
202206 1,068.244 296.311 1,203.945
202209 1,453.835 296.808 1,635.775
202212 1,375.223 296.797 1,547.382
202303 1,422.100 301.836 1,573.415
202306 1,414.137 305.109 1,547.820
202309 1,445.432 307.789 1,568.298
202312 1,518.960 306.746 1,653.680
202403 1,602.793 312.332 1,713.740
202406 1,599.920 314.175 1,700.633
202409 1,617.660 315.301 1,713.349
202412 1,667.420 315.605 1,764.352
202503 1,620.583 319.799 1,692.303
202506 1,563.798 322.561 1,619.022
202509 1,577.474 324.800 1,621.923
202512 1,868.263 324.054 1,925.328
202603 1,876.495 330.213 1,897.743
202606 1,959.382 333.952 1,959.382

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

What does a Cyclically Adjusted PB Ratio of 1.38 mean?
White Mountains Insurance Group (FRA:WNI) has a Cyclically Adjusted PB Ratio of 1.38 as of Aug. 16, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on White Mountains Insurance Group and its competitors. This is near median its historical median of 1.38. Over the past decade, White Mountains Insurance Group's Cyclically Adjusted PB Ratio has ranged from 0.94 to 1.64. According to the industry distribution chart, White Mountains Insurance Group ranks #204 out of 415 companies in the Insurance industry, placing it in the top 49.2%.
Is White Mountains Insurance Group's Cyclically Adjusted PB Ratio too high?
White Mountains Insurance Group's current Cyclically Adjusted PB Ratio of 1.38 is near median its 10-year median of 1.38. Over the past 10 years, this metric has ranged from a low of 0.94 to a high of 1.64. The Insurance industry median Cyclically Adjusted PB Ratio is 1.41. White Mountains Insurance Group's value of 1.38 is 2.1% below this industry median. Based on the distribution chart, White Mountains Insurance Group ranks #204 out of 415 companies in the Insurance industry, which is above the industry midpoint. Overall, White Mountains Insurance Group has a GF Score™ of 63/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does White Mountains Insurance Group's Cyclically Adjusted PB Ratio compare to RLI and SIGI?
According to the Insurance industry distribution chart, White Mountains Insurance Group ranks #204 out of 415 companies for Cyclically Adjusted PB Ratio. This puts White Mountains Insurance Group in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.41. White Mountains Insurance Group's value of 1.38 is 2.1% below this benchmark. Historically, White Mountains Insurance Group's own Cyclically Adjusted PB Ratio has ranged from 0.94 to 1.64 over the past decade. While the company's 10-year median is 1.38 vs. the industry median of 1.41, White Mountains Insurance Group has consistently been below 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 Cyclically Adjusted PB Ratio for an Insurance company?
The median Cyclically Adjusted PB Ratio among Insurance companies is 1.41, based on 415 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. White Mountains Insurance Group's current Cyclically Adjusted PB Ratio of 1.38 is 2.1% below 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on White Mountains Insurance Group and its competitors. For the Insurance industry, the median Cyclically Adjusted PB Ratio is 1.41 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. White Mountains Insurance Group's current Cyclically Adjusted PB Ratio is 1.38, which is near median its own 10-year median of 1.38. 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 (FRA:WNI) is currently considered Modestly Undervalued. The stock's GF Value™ is €2,094.49, compared to a current price of €1,820.00 — trading 13.1% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 1.38, which is near median its 10-year median of 1.38 and 2.1% below the Insurance industry median of 1.41. White Mountains Insurance Group's overall GF Score™ is 63/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For White Mountains Insurance Group (FRA:WNI), the current Cyclically Adjusted PB Ratio is 1.38 as of Aug. 16, 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 (FRA:WNI) Overvalued in 2026?

Based on GuruFocus' analysis, White Mountains Insurance Group stock appears to be undervalued. The current stock price of €1,820.00 is trading 13.1% below its estimated GF Value™ of €2,094.49. GuruFocus considers White Mountains Insurance Group to be Modestly Undervalued.

Key valuation signals for FRA:WNI:

  • Cyclically Adjusted PB Ratio: 1.38 (near median its 10-year median of 1.38)
  • GF Value™: €2,094.49 vs. price of €1,820.00 (13.1% below fair value)
  • GF Score™: 63/100 with 4 warning signs
  • Industry Position: 2.1% below the Insurance median (#204 of 415)

No single metric tells the full story. See the FRA:WNI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


White Mountains Insurance Group Business Description

Other Exchanges WTM:USA
Address 23 South Main Street, Suite 3B, Hanover, NH, USA, 03755-2053
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.
63GF Score

Get the complete analysis for FRA:WNI

Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€1,820.00
Price
€2,094.49
GF Value