Where do White Mountains Insurance Group's ratios come from?

Every ratio is computed from White Mountains Insurance Group's SEC filings — trailing-twelve-month flows over period-end balances. Valuation multiples combine those fundamentals with market data, recomputed each period. Switch between quarterly, annual, and TTM, or open any ratio for its full history and peer comparisons.

	TTM Q1 '26	TTM Q4 '25	TTM Q3 '25	TTM Q2 '25	TTM Q1 '25
Profitability
Gross margin	94.9%-3.7pp	95.9%-2.7pp	95.5%-3.4pp	97.4%-1.4pp	98.6%+0.1pp
Efficiency
Asset turnover	0.3×+0.1×	0.3×+0.1×	0.2×-0.1×	0.2×0.0×	0.2×0.0×
Leverage
Debt-to-equity	0.2×0.0×	0.2×0.0×	0.2×+0.1×	0.1×0.0×	0.1×0.0×
Debt-to-assets	0.1×0.0×	0.1×0.0×	0.1×0.0×	0.1×0.0×	0.1×0.0×
Valuation
Market capitalization	$5.42B+9.8%	$5.15B+3.0%	$4.3B+0.2%	$4.56B-0.9%	$4.94B+7.4%
Enterprise value	$6.25B+11.5%	$6.04B+8.0%	$5.17B+6.9%	$5.25B+2.4%	$5.61B+9.5%
Price / sales	1.5×-0.8×	1.4×-0.9×	1.7×+0.1×	1.8×-0.2×	2.3×+0.3×
Price / book	1×-0.1×	0.9×-0.2×	0.9×0.0×	1×-0.1×	1.1×+0.1×
EV / sales	1.7×-0.9×	1.6×-0.9×	2.1×+0.2×	2.1×-0.1×	2.6×+0.3×

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Questions, answered.

Where do White Mountains Insurance Group's ratios come from?: Every ratio is computed from White Mountains Insurance Group's SEC filings — trailing-twelve-month flows over period-end balances. Valuation multiples combine those fundamentals with market data, recomputed each period. Switch between quarterly, annual, and TTM, or open any ratio for its full history and peer comparisons.