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 statistics
90 measures from SEC filings and the closing price. Hover a name for the formula; the last column is the median of companies in the same industry group.
Important dates
- Next earnings
- Feb 5, 2027 (estimated, before the open)
- Last ex-dividend date
- Mar 16, 2026
- Fundamentals through
- Sep 30, 2026
- Share price as of
- Nov 13, 2026
Valuation ratiosIndustry
- P/TBV Ratio
- 1.29
- 1.74
- P/OCF Ratio
- 13.96
- 7.15
Enterprise valuationIndustry
- EV / Sales
- 1.65
- 0.97
Share statisticsIndustry
- Shares Change (YoY)
- -4.28%
- -1.32%
- Shares Change (QoQ)
- 0.00%
- -0.09%
- Float
- 2M
- 57M
- Shares Held by Insiders
- 2.71%
- 3.33%
- Shares Held by Institutions
- 92.3%
- 84.6%
Short sellingIndustry
- Short Interest
- 129,153
- –
- Short Interest Change
- -12.1%
- -2.56%
- Short % of Float
- 5.56%
- 3.81%
- Short % of Shares Outstanding
- 5.41%
- 3.02%
- Days to Cover
- 5.77
- 4.05
Stock price statisticsIndustry
- 52-Week High
- $2378.94
- –
- 52-Week Low
- $1870.00
- –
- 20-Day Moving Average
- $2252.00
- –
- 50-Day Moving Average
- $2134.57
- –
- 200-Day Moving Average
- $2147.93
- –
- Average True Range (14)
- $59.88
- –
- Price Change (1 Week)
- 0.62%
- 2.21%
- Price Change (1 Month)
- 5.19%
- 4.21%
- Price Change (3 Months)
- 6.70%
- 2.03%
- Price Change (6 Months)
- 5.53%
- 11.0%
- Price Change (YTD)
- 8.51%
- 8.86%
- Price Change (1 Year)
- 16.6%
- 10.7%
- Price Change (3 Years)
- 48.9%
- 42.9%
- Price Change (5 Years)
- 102.6%
- 42.3%
- Price Change (10 Years)
- 171.7%
- 113.0%
- Average Volume (10 Days)
- 26,542
- –
- Average Volume (20 Days)
- 24,449
- –
- Average Volume (90 Days)
- 20,968
- –
- Relative Volume
- 0.94
- 0.73
- Relative Strength Index (14)
- 55.5
- 56.3
- Volatility (1 Year)
- 20.1%
- 28.3%
- Beta (5 Years)
- 0.24
- 0.60
MarginsIndustry
- Pretax Margin
- 30.7%
- 13.5%
- EBITDA Margin
- 33.9%
- 13.5%
Returns on capitalIndustry
- Return on Equity (ROE)
- 19.2%
- 13.9%
- Return on Assets (ROA)
- 7.54%
- 2.97%
GrowthIndustry
- Revenue Growth (YoY)
- 44.9%
- 6.46%
- Net Income Growth (YoY)
- 591.2%
- 11.9%
- EPS Growth (YoY)
- 596.0%
- 12.7%
- Revenue Growth (3Y CAGR)
- 47.8%
- 9.53%
- Revenue Growth (5Y CAGR)
- 33.1%
- 8.29%
- EPS Growth (3Y CAGR)
- 15.8%
- 15.9%
- EPS Growth (5Y CAGR)
- 13.6%
- 15.2%
EfficiencyIndustry
- Asset Turnover
- 0.28
- 0.27
- Revenue Per Employee
- $2.19M
- $1.80M
- Profits Per Employee
- $588.05K
- $182.48K
- Employee Count
- 1,648
- 1,341
- WACC
- 7.60%
- 8.10%
Income statement (TTM)Industry
- Pretax Income
- $1.11B
- $617.47M
Balance sheetIndustry
- Net Cash (Debt)
- $167.40M
- $331.32M
- Net Cash Per Share
- $70.14
- $5.43
- Equity (Book Value)
- $5.35B
- $3.44B
- Book Value Per Share
- $2242.87
- $37.80
- Tangible Book Value
- $4.18B
- $2.32B
Cash flow (TTM)Industry
Dividends and yieldsIndustry
- Earnings Yield
- 18.0%
- 8.85%
- Dividend Yield
- 0.04%
- 1.88%
- Buyback Yield
- 7.61%
- 3.22%
- Shareholder Yield
- 7.65%
- 4.26%
- Dividend Per Share
- $1.00
- $1.75
- Dividend Growth (YoY)
- 0.00%
- 4.86%
- Years of Dividend Growth
- 0
- 3
- Payout Ratio
- 0.25%
- 20.1%
Taxes and interestIndustry
- Interest Expense
- $81.90M
- $77.46M
- Income Tax
- $119.30M
- $107.00M
- Effective Tax Rate
- 10.8%
- 20.0%
Scores and fair valueIndustry
- Graham Number
- $4366.06
- $76.72
- Graham Upside
- 93.6%
- 11.3%
- Altman Z-Score
- 1.22
- 0.94
- Piotroski F-Score
- 5
- 5
- Lynch Fair Value
- $5152.08
- –
- Lynch Upside
- 128.5%
- 74.7%
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 13, 2026. The S&P 500 is measured by the SPY fund.
| Period | WTM | S&P 500 | Difference | WTM per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | +7.7% | -3.0% | +10.8 pts | ||
| 3 months | +5.3% | -2.8% | +8.1 pts | ||
| Year to date | +8.6% | +11.5% | −2.9 pts | ||
| 1 year | +17.8% | +13.5% | +4.3 pts | ||
| 3 years | +50.6% | +77.7% | −27.1 pts | +14.6% | +21.1% |
| 5 years | +103.2% | +72.6% | +30.6 pts | +15.2% | +11.5% |
| 10 years | +174.7% | +308.2% | −133.4 pts | +10.6% | +15.1% |
Short interest
Shares sold short and not yet covered, reported by brokers to FINRA twice a month. Latest settlement date Oct 30, 2026.
0M WTM shares were sold short on Oct 30, 2026, down 12.1% from the previous report, or 5.56% of the shares available to trade. At recent volumes it would take 5.8 days to buy them back. Over the last 20 sessions, 71.3% of the volume reported to FINRA was short selling.
| Settlement date | Shares short | Change | Avg. daily volume | Days to cover |
|---|---|---|---|---|
| Oct 30, 2026 | 129,153 | -12.1% | 22,387 | 5.8 |
| Oct 15, 2026 | 146,873 | +5.2% | 20,114 | 7.3 |
| Sep 30, 2026 | 139,645 | +3.1% | 18,801 | 7.4 |
| Sep 15, 2026 | 135,407 | +2.8% | 21,956 | 6.2 |
| Aug 31, 2026 | 131,685 | -3.4% | 20,341 | 6.5 |
| Aug 14, 2026 | 136,316 | -0.5% | 24,045 | 5.7 |
| Jul 31, 2026 | 136,979 | -1.0% | 16,053 | 8.5 |
| Jul 15, 2026 | 138,306 | +10.9% | 18,729 | 7.4 |
| Jun 30, 2026 | 124,761 | +4.6% | 18,170 | 6.9 |
| Jun 15, 2026 | 119,240 | +31.1% | 26,358 | 4.5 |
| May 29, 2026 | 90,960 | +3.4% | 22,008 | 4.1 |
| May 15, 2026 | 87,955 | +12.7% | 23,809 | 3.7 |
Ratios use trailing-twelve-month results and the latest balance sheet. How we calculate.
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