White Mountains Insurance Group, Ltd. (WTM)

White Mountains Insurance Group is a specialty insurance and reinsurance holding company known for opportunistic capital allocation. It builds, acquires and exits underwriting and related financial businesses rather than running a single consumer-facing brand. Management emphasizes underwriting discipline and deploying capital where risk–reward looks attractive across the specialty insurance landscape. Investors and counterparties typically view it as a long-term insurance capital allocator more than a monoline carrier.

Market

NYSE

Sector

Financial Services

Trend

Downtrend

Last close

2,103.49 (-0.41% on the day)

MA50

2,140.78

MA200

2,124.24

52-week range

1,649.75–2,319.41

Market cap

5B USD

P/E

4.82

Dividend yield

0.05%

Data as of

2026-09-04

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