White Mountains Insurance Group Ltd (WTM) stock
WTMNYSEFire, Marine & Casualty InsuranceFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 5, 2026Score 15/3030% below fair value
$2254.95+8.43 (+0.38%)
Close on Nov 13, 2026Market cap $5.38BP/E 6.0Yield 0.04%
White Mountains Insurance enterprise value
Enterprise value is market cap plus debt, minus cash: the value of the whole business to all its investors.
White Mountains Insurance's enterprise value was $6.00B on Nov 11, 2026, against $5.56B a year earlier. Over the last 5 years it ranged from $3.02B to $6.05B, with a median of $4.78B.
Enterprise Value at the end of each year
| Period | Period end | Value | Change |
|---|---|---|---|
| 2026 | Nov 11, 2026 | $6.00B | +5.3% |
| 2025 | Dec 31, 2025 | $5.69B | +7.5% |
| 2024 | Dec 31, 2024 | $5.30B | +35.7% |
| 2023 | Dec 29, 2023 | $3.91B | +9.8% |
| 2022 | Dec 30, 2022 | $3.56B | +17.7% |
| 2021 | Dec 31, 2021 | $3.02B | +8.2% |
| 2020 | Dec 31, 2020 | $2.79B | -15.0% |
| 2019 | Dec 31, 2019 | $3.28B | +32.8% |
| 2018 | Dec 31, 2018 | $2.47B | +11.0% |
| 2017 | Dec 29, 2017 | $2.23B | -37.5% |
| 2016 | Dec 30, 2016 | $3.56B | -14.0% |
| 2015 | Dec 31, 2015 | $4.14B | +35.4% |
| 2014 | Dec 31, 2014 | $3.06B | -5.6% |
| 2013 | Dec 31, 2013 | $3.24B | +14.2% |
| 2012 | Dec 31, 2012 | $2.83B | -8.5% |
| 2011 | Dec 30, 2011 | $3.10B | +57.9% |
| 2010 | Dec 31, 2010 | $1.96B | – |
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