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WHITE MOUNTAINS INSURANCE GROUP LTD (WTM)
Price & fundamentals
Compound Annual Growth Rate(CAGR)
Historical valuation multiples
Ratio observations in the selected window
| Price date | EPS fiscal end | Basic P/E (×) | Diluted P/E (×) | P/S (×) | P/FCF (×) |
|---|
Profit margins
Calculation inputs, filings & unavailable observations
Yield, cash conversion & capital returns
Calculation inputs, filings & unavailable observations
Price & growth-based reference
Annual change in the selected reference metric
YEAR-OVER-YEAR
Annual metric change
Change from the previous reported fiscal year
Annual data and sources
WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) · NYSE · USD · Sector unavailable · CIK 0000776867
Annual coverage: 2008-12-31–2025-12-31 (18 periods). Financial snapshot built 2026-10-09.
WTM annual financial history
All stored annual observations, independent of the chart window. Per-share amounts in USD. Unavailable values are not zero.
See the calculation and limitations.
Annual per-share context (USD/share)
Complete annual history, independent of chart loading and range. Revenue/share is annual revenue per average diluted share. Debt/share is borrowings per year-end common share, excluding leases. Missing inputs remain unavailable. Metric definitions.
| Fiscal end | Revenue / share | Total debt / share | Inputs & filing sources |
|---|---|---|---|
| 2025-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2024-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2023-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2022-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2021-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2020-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2019-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2018-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2017-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2016-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2015-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2014-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2013-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2012-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2011-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2010-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2009-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2008-12-31 | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; averageDilutedShares: Banking or insurance accounting is outside this metric policy; totalDebt: Banking or insurance accounting is outside this metric policy; periodEndShares: Banking or insurance accounting is outside this metric policy Source unavailable |
Annual returns and cash generation (%)
Complete annual history, independent of chart loading and range. FCF margin and FCF / net income use matching annual totals. ROCE uses positive exact opening and closing capital-employed bases. Inputs, scopes and unavailable reasons are disclosed below. Missing inputs remain unavailable. Metric definitions.
| Fiscal end | FCF margin (%) | FCF / net income (%) | ROCE (%) | Inputs & filing sources |
|---|---|---|---|---|
| 2025-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2024-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2023-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2022-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2021-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2020-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2019-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2018-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2017-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2016-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2015-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2014-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2013-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2012-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2011-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2010-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2009-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2008-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsCalculation inputs: {"original":{},"recovered":{}}; fcfMargin: Banking or insurance accounting is outside this metric policy; cashConversion: Banking or insurance accounting is outside this metric policy; roce: Banking or insurance accounting is outside this metric policy Source unavailable |
Annual operating facts
Complete annual history, independent of chart loading and range. Operating margin is operating profit as a percentage of revenue; net margin is consolidated net profit as a percentage of revenue. Negative margins show losses. Missing inputs remain unavailable. Metric definitions.
| Fiscal end | Revenue (USD) | Operating margin (%) | Net margin (%) | Inputs & filing sources |
|---|---|---|---|---|
| 2025-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2024-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2023-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2022-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2021-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2020-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2019-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2018-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2017-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2016-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2015-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2014-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2013-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2012-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2011-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2010-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2009-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
| 2008-12-31 | Unavailable | Unavailable | Unavailable | Inputs & filingsrevenue: Banking or insurance accounting is outside this metric policy; operatingIncome: Banking or insurance accounting is outside this metric policy; netIncome: Banking or insurance accounting is outside this metric policy Source unavailable |
WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) P/E ratio history
The interactive P/E chart contains all 1129 stored weekly price points (2005-02-25–2026-10-08); 771 have an eligible basic or diluted ratio. Annual EPS is carried forward from its fiscal end. Use the P/E range bar or any other chart range bar to change all five chart windows.
Fiscal-year-end snapshots
15 eligible fiscal-year-end observations span 2009-12-31–2025-12-31. Latest eligible diluted P/E: 4.79×; basic P/E: 4.79×, for fiscal end 2025-12-31, using the close on 2025-12-26.
Annual P/E = eligible fiscal-year-end close ÷ reported annual EPS. This is retrospective annual P/E, not TTM or forward P/E. Why we use annual data. Missing or non-positive EPS and missing eligible prices produce unavailable ratios.
Explore the P/E chart and optional reference lines · How P/E history is calculated.
Complete annual P/E history (18 fiscal periods)
| Fiscal end | Price date | Close | Price basis | Basic P/E | Diluted P/E | EPS filings |
|---|---|---|---|---|---|---|
| 2025-12-31 | 2025-12-26 | 2,062.34 | Adjusted close | 4.79 | 4.79 | Basic EPS (2026-02-27) Diluted EPS (2026-02-27) |
| 2024-12-31 | 2024-12-27 | 1,918.73 | Adjusted close | 21.37 | 21.37 | Basic EPS (2026-02-27) Diluted EPS (2026-02-27) |
| 2023-12-31 | 2023-12-29 | 1,505.01 | Adjusted close | 7.58 | 7.58 | Basic EPS (2026-02-27) Diluted EPS (2026-02-27) |
| 2022-12-31 | 2022-12-30 | 1,414.33 | Adjusted close | 5.11 | 5.11 | Basic EPS (2025-02-28) Diluted EPS (2025-02-28) |
| 2021-12-31 | 2021-12-31 | 1,012.94 | Adjusted close | Unavailable | Unavailable | Basic EPS (2024-02-26) Diluted EPS (2024-02-26) |
| 2020-12-31 | 2020-12-31 | 998.86 | Adjusted close | 4.40 | 4.40 | Basic EPS (2023-02-27) Diluted EPS (2023-02-27) |
| 2019-12-31 | 2019-12-27 | 1,094.71 | Adjusted close | 8.40 | 8.40 | Basic EPS (2022-02-28) Diluted EPS (2022-02-28) |
| 2018-12-31 | 2018-12-28 | 850.63 | Adjusted close | Unavailable | Unavailable | Basic EPS (2021-02-26) Diluted EPS (2021-02-26) |
| 2017-12-31 | 2017-12-29 | 846.74 | Adjusted close | 5.80 | 5.80 | Basic EPS (2020-03-02) Diluted EPS (2020-03-02) |
| 2016-12-31 | 2016-12-30 | 830.68 | Adjusted close | 10.37 | 10.38 | Basic EPS (2019-02-27) Diluted EPS (2019-02-27) |
| 2015-12-31 | 2015-12-31 | 721.24 | Adjusted close | 14.37 | 14.37 | Basic EPS (2018-02-28) Diluted EPS (2018-02-28) |
| 2014-12-31 | 2014-12-26 | 638.20 | Adjusted close | 12.48 | 12.48 | Basic EPS (2017-02-27) Diluted EPS (2017-02-27) |
| 2013-12-31 | 2013-12-27 | 595.46 | Adjusted close | 11.48 | 11.48 | Basic EPS (2016-02-29) Diluted EPS (2016-02-29) |
| 2012-12-31 | 2012-12-28 | 505.79 | Adjusted close | 16.58 | 16.58 | Basic EPS (2015-02-27) Diluted EPS (2015-02-27) |
| 2011-12-31 | 2011-12-30 | 446.82 | Adjusted close | 4.59 | 4.59 | Basic EPS (2014-02-28) Diluted EPS (2014-02-28) |
| 2010-12-31 | 2010-12-31 | 329.76 | Adjusted close | 32.58 | 32.58 | Basic EPS (2013-03-01) Diluted EPS (2013-03-01) |
| 2009-12-31 | 2009-12-31 | 326.87 | Adjusted close | 6.15 | 6.16 | Basic EPS (2011-02-28) Diluted EPS (2011-02-28) |
| 2008-12-31 | 2008-12-26 | 239.01 | Adjusted close | Unavailable | Unavailable | Basic EPS (2011-02-28) Diluted EPS (2011-02-28) |
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