White Mountains Insurance Group exhibits a fundamentally sound capital base, with equity expanding 20% from $4.5B in 2024Q1 to $5.4B by 2026Q2, yet earnings quality is undermined by extreme underwriting volatility.
Price trend, volume and key moving averages
Trailing total returns as of 11/8/2026, which may include dividends or other distributions. Benchmark is S&P 500 (^GSPC).
Check whether operating performance supports the current valuation.
Recent results and news deserve attention only when they alter the forward view.
| Quarter | EPS (Act vs Est) | Revenue (Act vs Est) |
|---|---|---|
Q4 2026Latest Nov 5, 2026 | $38.15+1426.0% vs $2.50 | $641M+0.0% vs $641M |
Q3 2026 Aug 6, 2026 | $80.58+7.4% vs $75.00 | $845M+0.0% vs $845M |
Q2 2026 May 6, 2026 | -$12.59-214.4% vs -$4.00 | $515M+0.0% vs $515M |
Q1 2026 Feb 6, 2026 | $3.27-13.8% vs $3.79 | $576M+0.0% vs $576M |
HAMILTON, Bermuda, Nov. 5, 2026 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported book value per share of $2,243 as of September 30, 2026, a decrease of 1% for the third quarter of 2026 and an increase of 3% for the first nine months of 2026, including dividends.
Four Carriers in One All-Outdoor Radio, a New Benchmark in Microwave Transport AUSTIN, Texas, Oct. 13, 2026 /PRNewswire/ -- Aviat Networks, Inc. (NASDAQ: AVNW), the expert in wireless transport and access solutions, today announced the WTM 4400, also known as the 'Quad', which is the only solution on the market to support 4 independent microwave channels in one all-outdoor radio unit. The Highest Capacity in One box Aviat's Quad supports the highest capacity microwave links in a single all-outdoor unit, up to 5 Gbit/s in 4x 112 MHz channels (ETSI) or 3 Gbit/s in 4x 80 MHz channels (ANSI), without external combining, antenna mediation devices, or indoor units.
Public Employees Retirement System of Ohio bought a new position in White Mountains Insurance Group, Ltd. (NYSE: WTM) in the second quarter, according to its most recent 13F filing with the Securities and Exchange Commission. The institutional investor bought 721 shares of the insurance provider's stock, valued at approximately $1,495,000. Other institutional investors
White Mountains (WTM) might move higher on growing optimism about its earnings prospects, which is reflected by its upgrade to a Zacks Rank #2 (Buy).
Benchmark WTM against direct peers instead of judging its metrics in isolation.
Key metrics vs top competitors for White Mountains Insurance Group, Ltd. (WTM)
| Company | Price | Market Cap | P/E Ratio | Rev Growth (1Y) | Net Margin | ROE | Div Yield |
|---|---|---|---|---|---|---|---|
| $2241.12 | $5.55B | 5.42 | 14.99% | 37.82% | 19.15% | 0.05% | |
| $1939.04 | $24.02B | 13.46 | -0.96% | 10.47% | 9.53% | 2.5% | |
| $107.28 | $37.48B | 8.37 | 14.27% | 23.19% | 18.35% | 0.02% | |
| $347.35 | $14.43B | 8.94 | 9.45% | 17.07% | 8.26% | 0.48% | |
| $273.07 | $12.61B | 24.79 | 7.17% | 13.97% | 23.86% | 1.77% | |
| $186.03 | $2.37B | 7.12 | 20.21% | 33.48% | 28.01% | 0.8% |
White Mountains Insurance Group, Ltd. (WTM) vs competitors — business, growth, and fundamentals comparison against the closest industry rivals.
Verify the primary filings, follow material updates, and answer the remaining questions.
White Mountains Insurance Group, Ltd. (WTM) SEC filings — annual & quarterly reports (10-K, 10-Q)
Aug 6, 2026·SEC
Jun 5, 2026·SEC
May 21, 2026·SEC
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White Mountains Insurance Group, Ltd. (WTM) stock FAQ — growth, dividends, profitability & financials explained
White Mountains Insurance Group, Ltd. (WTM) grew revenue by 3.5% over the trailing twelve months, compared with the twelve months before.
Yes. White Mountains Insurance Group, Ltd. (WTM) earned $974.6M in net income over the trailing twelve months (a 37.8% net margin).
White Mountains Insurance Group, Ltd. (WTM) does not currently pay a meaningful dividend.
White Mountains Insurance Group, Ltd. (WTM) had a return on equity (ROE) of 19.2% over the trailing twelve months. That is above the market's typical 10-15%.
White Mountains Insurance Group, Ltd. (WTM) has a combined ratio of 50.9%. A ratio below 100% indicates underwriting profitability.
