WTM · NYSE
White Mountains Insurance Group (WTM) Stock Price & Fundamentals
White Mountains Insurance Group (WTM) closed at $620.43 on Oct 9, 2026, down 0.77% from the previous close of $625.25.
Share price, past year
1Y +29.68%Monthly closing prices
| Date | Close |
|---|---|
| Oct 9, 2026 | $620.43 |
| Sep 30, 2026 | $621.79 |
| Aug 31, 2026 | $616.67 |
| Jul 31, 2026 | $642.09 |
| Jun 30, 2026 | $614.76 |
| May 29, 2026 | $655.96 |
| Apr 30, 2026 | $625.62 |
| Mar 31, 2026 | $609.19 |
| Feb 27, 2026 | $571.69 |
| Jan 30, 2026 | $549.02 |
| Dec 31, 2025 | $496.50 |
| Nov 28, 2025 | $480.21 |
| Oct 31, 2025 | $493.25 |
Key statistics
- Market cap
- $1.48B
- P/E (TTM)
- 1.4
- EPS (TTM)
- $437.19
- Revenue (TTM)
- $3.83B
- Net income (TTM)
- $1.12B
- Shares outstanding
- 2.4M
- Dividend yield
- 0.16%
- 52-week range
- $478.44 – $660.02
White Mountains Insurance Group's market cap is $1.48B, based on a share price of $620.43 and 2.4M shares outstanding as of Jun 30, 2026.
Financials
White Mountains Insurance Group reported revenue of $3.74B for fiscal 2025, up 66.76% from fiscal 2024.
White Mountains Insurance Group earned net income of $1.11B in fiscal 2025, a net margin of 29.6%.
Fiscal 2025 revenue was the highest in the 10 years shown.
Annual revenue
| Fiscal year | Revenue | Growth | Net income | Net margin | EPS (diluted) | Free cash flow |
|---|---|---|---|---|---|---|
| FY2025ended Dec 31, 2025 | $3.74B | +66.8% | $1.11B | 29.6% | $430.14 | — |
| FY2024ended Dec 31, 2024 | $2.24B | +3.4% | $230.40M | 10.3% | $89.79 | — |
| FY2023ended Dec 31, 2023 | $2.17B | +87.1% | $509.20M | 23.5% | $198.60 | — |
| FY2022ended Dec 31, 2022 | $1.16B | +88.5% | $792.80M | 68.5% | $276.96 | — |
| FY2021ended Dec 31, 2021 | $614.40M | −31.4% | −$275.40M | −44.8% | −$89.46 | — |
| FY2020ended Dec 31, 2020 | $895.60M | +0.3% | — | — | $226.97 | — |
| FY2019ended Dec 31, 2019 | $893.40M | +142.1% | — | — | $130.27 | — |
| FY2018ended Dec 31, 2018 | $369.10M | −1.3% | — | — | −$41.76 | — |
| FY2017ended Dec 31, 2017 | $373.80M | +137.0% | — | — | $146.06 | — |
| FY2016ended Dec 31, 2016 | $157.70M | — | — | — | $80.06 | — |
| Quarter | Revenue | Net income | EPS (diluted) |
|---|---|---|---|
| Q2 FY2026ended Jun 30, 2026 | $844.60M | $199.50M | $80.58 |
| Q1 FY2026ended Mar 31, 2026 | $517.80M | −$27.20M | −$12.59 |
| Q4 FY2025ended Dec 31, 2025 | $1.60B | $835.80M | $325.02 |
| Q3 FY2025ended Sep 30, 2025 | $864.20M | $113.80M | $44.18 |
| Q2 FY2025ended Jun 30, 2025 | $689.20M | $122.90M | $47.75 |
| Q1 FY2025ended Mar 31, 2025 | $577.80M | $33.90M | $13.19 |
| Q4 FY2024ended Dec 31, 2024 | $358.00M | −$130.40M | −$50.98 |
| Q3 FY2024ended Sep 30, 2024 | $839.10M | $179.00M | $69.68 |
Company profile
- Name
- White Mountains Insurance Group, Ltd.
- Ticker
- WTM
- Exchange
- NYSE
- Industry (SEC SIC)
- Fire, Marine & Casualty Insurance
- Headquarters
- 23 South Main Street, Suite 3b, Hanover, NH 03755
- Incorporated in
- D0
- Fiscal year ends
- December
- SEC CIK
- 0000776867
Recent SEC filings
- Aug 27, 2026
- Aug 6, 2026
- Aug 6, 2026
- Jun 5, 2026
- May 21, 2026
- May 15, 2026
- May 6, 2026
- May 6, 2026
Frequently asked questions
What is White Mountains Insurance Group's stock price?
White Mountains Insurance Group (WTM) closed at $620.43 on Oct 9, 2026, down 0.77% from the previous close of $625.25.
What is White Mountains Insurance Group's market cap?
White Mountains Insurance Group's market cap is $1.48B, based on a share price of $620.43 and 2.4M shares outstanding as of Jun 30, 2026.
How much revenue does White Mountains Insurance Group make?
White Mountains Insurance Group reported revenue of $3.74B for fiscal 2025, up 66.76% from fiscal 2024.
What is WTM's P/E ratio?
White Mountains Insurance Group's price-to-earnings ratio is 1.4, based on trailing twelve-month diluted EPS of $437.19.
Does White Mountains Insurance Group pay a dividend?
Yes. White Mountains Insurance Group declared $1.00 per share in dividends over the last four quarters, a yield of 0.16%.
Sources and methodology
Fundamentals come from White Mountains Insurance Group, Ltd.'s filings with the SEC (EDGAR XBRL company facts). Fourth-quarter figures that companies don't report separately are calculated as the fiscal year minus the first three quarters. Trailing twelve-month (TTM) figures sum the latest four quarters. Prices are generated sample data for development. Last updated Oct 9, 2026. Data sources and disclosures