White Mountains Insurance Group

WTMNYSE United States Finance Property-Casualty Insurers

Market cap

$5.323 B

$2,149.44 +0.39%

Close of 7 Aug 2026

Revenue

$3.73B

#813 by revenue

Earnings

$1.11B

#356 by earnings

Shares outstanding

2,386,721

Latest filing cover page

P/E ratio

4.8

Cap ÷ net income

Property-Casualty Insurers — ranked by market cap

All 68 →

#25RliRLI$5.89B
#26Selective Insurance GroupSIGI$5.73B
#27White Mountains Insurance GroupWTM$5.32B
#28Radian GroupRDN$4.91B
#29LemonadeLMND$4.10B

Where these numbers come from

Share counts and financials for White Mountains Insurance Group are taken from its own SEC filings via EDGAR — public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Last updated 9 Aug 2026. Read the methodology.