White Mountains Insurance Group, Ltd. has grown revenue 48% a year over three years and 33% a year over five, with earnings per share compounding at 16%. Revenue growth, 3-year annual rate: +48% (Insurance - Property & Casualty median +9.0%). Revenue growth, 5-year rate: +33%, growth has picked up over the last three years. Earnings per share, 3-year rate: +16%, earnings lagged revenue: the growth is costing something. Years of annual history on file: 18, FY2008 to FY2025, as filed.

WTMWhite Mountains Insurance Group, Ltd.

Financial Services

$2,062.71+17% 1Y

$2,062.71

$1.6K52 weeks$2.3K

Is it growing?

Good

Growing: revenue growing +55% year on year and earnings up +448% year on year.

2 good, 1 without data

Revenue trend+55% in a year

Trailing-twelve-month revenue vs a year earlier, from the company's own filings. Five-year pace: +21% a year.

Earnings trend+448% in a year

Trailing-twelve-month earnings per share against a year earlier. Growing faster than revenue, so margins or the share count are helping.

All from SEC EDGAR, as of Jun 30, 2026.

Where this answer is blind. These are trailing numbers from the filings, not forecasts: an acquisition or a one-off year can flatter them, so check the quarters.

Is WTM growing?

White Mountains Insurance Group, Ltd. has grown revenue 48% a year over three years and 33% a year over five, with earnings per share compounding at 16%.

+48%

Revenue growth, 3-year annual rate · Insurance - Property & Casualty median +9.0% · compounding fast · compounded from fiscal-year columns as filed

Revenue growth, 5-year rate: +33%
Revenue growth, 5-year rate · +48% over three · growth has picked up over the last three years
Earnings per share, 3-year rate: +16%
Earnings per share, 3-year rate · revenue +48% · earnings lagged revenue: the growth is costing something
Years of annual history on file: 18
Years of annual history on file · FY2008 to FY2025, as filed