White Mountains Insurance Group (FRA:WNI) E10: €143.09 (As of Mar. 2026)

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FRA:WNI White Mountains Insurance Group Ltd FRA:WNI
75 GF Score
Price €1,900.00
GF Value €2,043.46
! 3 Warning Signs
View Full Analysis

What is White Mountains Insurance Group E10?

White Mountains Insurance Group FRA:WNI +2.70% 75 E10 is €143.09 as of Mar. 2026. GuruFocus rates FRA:WNI with a GF Score™ of 75/100 and a GF Value™ of €2,043.46. The stock has 3 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

White Mountains Insurance Group's adjusted earnings per share data for the three months ended in Mar. 2026 was €-10.890. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €143.09 for the trailing ten years ended in Mar. 2026.

During the past 12 months, White Mountains Insurance Group's average E10 Growth Rate was 32.00% per year. During the past 3 years, the average E10 Growth Rate was 17.20% per year. During the past 5 years, the average E10 Growth Rate was 14.80% per year. During the past 10 years, the average E10 Growth Rate was 14.30% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of White Mountains Insurance Group was 108.90% per year. The lowest was -39.90% per year. And the median was 11.30% per year.

As of today (2026-07-21), White Mountains Insurance Group's current stock price is €1900.00. White Mountains Insurance Group's E10 for the quarter that ended in Mar. 2026 was €143.09. White Mountains Insurance Group's Shiller PE Ratio of today is 13.28.

During the past 13 years, the highest Shiller PE Ratio of White Mountains Insurance Group was 21.89. The lowest was 10.78. And the median was 14.45.


White Mountains Insurance Group  (FRA:WNI) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

White Mountains Insurance Group's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=1900.00/143.09
=13.28

* 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.

During the past 13 years, the highest Shiller P/E Ratio of White Mountains Insurance Group was 21.89. The lowest was 10.78. And the median was 14.45.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


White Mountains Insurance Group E10 Related Terms


White Mountains Insurance Group E10 Historical Data

* Premium members only.

The historical data trend for White Mountains Insurance Group's E10 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 E10 Chart

White Mountains Insurance Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 63.58 91.77 106.59 114.42 138.12

White Mountains Insurance Group Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
E10 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 112.67 108.24 116.50 138.12 143.09

FRA:WNI vs RLI, SIGI, LMND: E10 Comparison

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

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

* The bar in red indicates where White Mountains Insurance Group's Shiller PE Ratio falls into.


FRA:WNI
75GF Score
White Mountains Insurance Group Ltd FRA:WNI
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

White Mountains Insurance Group E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

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.

For example, White Mountains Insurance Group's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=-10.89/330.2130*330.2130
=-10.890

Current CPI (Mar. 2026) = 330.2130.

White Mountains Insurance Group Quarterly Data

per share eps CPI Adj_EPS
201606 59.443 241.018 81.441
201609 16.582 241.428 22.680
201612 -6.920 241.432 -9.465
201703 5.928 243.801 8.029
201706 2.643 244.955 3.563
201709 109.750 246.819 146.832
201712 5.070 246.524 6.791
201803 -10.397 249.554 -13.757
201806 0.873 251.989 1.144
201809 10.995 252.439 14.382
201812 -38.008 251.233 -49.957
201903 79.331 254.202 103.052
201906 5.699 256.143 7.347
201909 13.883 256.759 17.855
201912 17.208 256.974 22.112
202003 -36.689 258.115 -46.937
202006 32.980 257.797 42.244
202009 63.947 260.280 81.129
202012 129.629 260.474 164.336
202103 -20.412 264.877 -25.447
202106 36.985 271.696 44.951
202109 -102.153 274.310 -122.971
202112 9.620 278.802 11.394
202203 10.079 287.504 11.576
202206 -53.733 296.311 -59.881
202209 309.999 296.808 344.889
202212 14.811 296.797 16.479
202303 65.221 301.836 71.353
202306 7.061 305.109 7.642
202309 8.611 307.789 9.238
202312 102.585 306.746 110.433
202403 84.944 312.332 89.807
202406 -19.732 314.175 -20.739
202409 62.782 315.301 65.751
202412 -48.495 315.605 -50.740
202503 12.201 319.799 12.598
202506 41.399 322.561 42.381
202509 37.641 324.800 38.268
202512 279.454 324.054 284.765
202603 -10.890 330.213 -10.890

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of €143.09 mean?
White Mountains Insurance Group (FRA:WNI) has a E10 of €143.09 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on White Mountains Insurance Group and its competitors.
Is White Mountains Insurance Group's E10 too high?
White Mountains Insurance Group's current E10 is €143.09. Overall, White Mountains Insurance Group has a GF Score™ of 75/100, reflecting its overall financial health beyond just this single metric.
How does White Mountains Insurance Group's E10 compare to RLI and SIGI?
White Mountains Insurance Group's E10 of €143.09 can be compared against companies in the Insurance industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for an Insurance company?
A good E10 depends on the Insurance industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on White Mountains Insurance Group and its competitors. White Mountains Insurance Group's current E10 is €143.09. 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?
White Mountains Insurance Group (FRA:WNI) has a current E10 of €143.09. The stock's GF Value™ is €2,043.46, compared to a current price of €1,900.00 — trading 7% below its estimated fair value. The current E10 is €143.09. White Mountains Insurance Group's overall GF Score™ is 75/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is E10 calculated?
E10 is calculated from a company's financial statements. For White Mountains Insurance Group (FRA:WNI), the current E10 is €143.09 as of Mar. 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 €1,900.00 is trading 7% below its estimated GF Value™ of €2,043.46.

Key valuation signals for FRA:WNI:

  • E10: €143.09
  • GF Value™: €2,043.46 vs. price of €1,900.00 (7% below fair value)
  • GF Score™: 75/100 with 3 warning signs

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.
75GF Score

Get the complete analysis for FRA:WNI

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€1,900.00
Price
€2,043.46
GF Value