White Mountains Insurance Group, Ltd.
White Mountains Insurance Group, Ltd. (WTM) Market Cap & Net Worth
Live market cap, enterprise value, and global rank — multi-year chart and annual table below.
wtm · market cap & enterprise value · FMP · as of Jun 8, 2026
Core market cap & key metrics
As of Jun 8, 2026, White Mountains Insurance Group, Ltd. (WTM) has a market cap — also referred to as its net worth or valuation — of $5.1B, making it one of the top most valuable companies globally. Market Cap = $2,044.65 × shares outstanding.
Market cap history — by year
* 2026 = year-to-date · Year-end market cap · Source: FMP
Market cap by year
Compared to Peers
View Financial Services sectorAbout Market Cap, Net Worth & Valuation
White Mountains Insurance Group, Ltd. (WTM) has a market cap — also referred to as its net worth or valuation — of $5.1B as of Jun 8, 2026, making it the #0 most valuable company globally. Market Cap = Stock Price × Shares Outstanding.
White Mountains Insurance Group, Ltd. reached its all-time high market cap of $6.0B on Apr 17, 2026. Comparing the White Mountains Insurance Group, Ltd. market cap history illustrates one of the most extraordinary corporate growth stories.
Investors frequently compare White Mountains Insurance Group, Ltd. net worth vs peers and ask how White Mountains Insurance Group, Ltd. valuation compares to other countries. Its market cap reflects continued investor confidence.
Frequently Asked Questions
WTM market cap · 6 questionsWhite Mountains Insurance Group, Ltd.'s net worth — measured as market capitalization — is $5.1B as of Jun 8, 2026. It ranks #0 globally. Market Cap = $$2,044.65 (price) × shares outstanding.