White Mountains Insurance Group Ltd. (WTM)
WTM trades on NYSE in Finance, Property-Casualty Insurers. Numbers below come from the Nasdaq screener and SEC filings, each with its source.
Price · October 14, 2026
$2093.13
+0.30% on the day
Market cap
$5.0B
Mid cap
Revenue · 2025
$3.7B
+66.8% on 2024
Net income · 2025
$1.1B
29.6% net margin
Price, change, market cap, sector and industry: Nasdaq stock screener, as of October 14, 2026. Revenue: SEC XBRL frames, calendar 2025.
Profile
| Field | Value |
|---|---|
| Ticker | WTM on NYSE |
| Sector | Finance |
| Industry | Property-Casualty Insurers |
| Country | United States |
| IPO year | Not reported by the screener |
| SEC CIK | 0000776867 |
| SEC industry code | Fire, Marine & Casualty Insurance |
| Incorporated in | D0 |
Financials · 2025
| Line | Value |
|---|---|
| Revenue | $3.7B |
| Net income | $1.1B |
| Operating income | Not in SEC XBRL data |
| Net margin | 29.6% |
| Operating margin | Operating income not reported |
| Revenue growth | +66.8% |
| Cash | Not in SEC XBRL data |
| Total assets | $12.3B |
| P/E (computed) | 4.5× |
| P/S (computed) | 1.3× |
Key SEC documents
| Document | Form | Filed |
|---|---|---|
| Latest annual report | 10-K | 2026-02-27 |
| Latest quarterly / interim | 10-Q | 2026-08-06 |
| Latest current report | 8-K | 2026-08-27 |
| Latest proxy FORM DEF 14A | DEF 14A | 2026-04-01 |
Source: SEC EDGAR submissions feed, 1,000 recent filings. All filings on EDGAR.
Price moves
| Window | Return |
|---|---|
| 1 week | +3.5% |
| 1 month | +2.8% |
| 3 months | -4.3% |
| Year to date | +1.2% |
| 1 year | +10.5% |
| From 52-week high | -9.3% |
Source: Yahoo Finance daily closes, last bar 2026-10-14. Computed by Sophia Capital from daily closes; cap, sector and tier from the Nasdaq screener.
Peers in Property-Casualty Insurers
| Ticker | Company | Price | Day | Market cap |
|---|---|---|---|---|
| SIGI | Selective Insurance Group Inc. | $85.15 | +0.27% | $5.1B |
| RLI | RLI Corp. Common Stock (DE) | $57.10 | +0.83% | $5.2B |
| MTG | MGIC Investment Corporation | $27.12 | +0.33% | $5.6B |
| ESNT | Essent Group Ltd. Common Shares | $62.04 | +0.58% | $5.6B |
| RDN | Radian Group Inc. | $33.75 | -0.35% | $4.5B |
| MCY | Mercury General Corporation | $102.88 | +0.17% | $5.7B |
| PLMR | Palomar Holdings Inc. | $133.43 | -0.60% | $3.5B |
| AXS | Axis Capital Holdings Limited | $97.55 | +0.24% | $7.1B |
The full dossier has every filing, three years of financials, private raises and the people who signed them.
Open the full dossier