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White Mountains Insurance Group WTM Ark — Unearned Premiums

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Other financials

Income statement

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Revenue$517.8M-10.4%
Gross profit$475.1M-16.7%
Net income-$27.2M-180%

Balance sheet

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Total debt$834.8M+23.5%
Total equity$5.4B+19.2%
Total assets$13.2B+19.7%

Cash flow

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Operating cash flow$30.5M+176%

Valuation

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Market cap$4.99B+9.8%

Profitability

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Gross margin94.9%-3.7pp
Net margin28.4%

Returns & leverage

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Return on equity21.2%
Debt / equity0.2×0.0×

Where this comes from

Reported directly by White Mountains Insurance Group in its filing.

Tagged under the XBRL concept us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersUnearnedPremiums.

The official record: White Mountains Insurance Group’s 10-K, filed February 27, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is White Mountains Insurance Group's ark — unearned premiums?
White Mountains Insurance Group (WTM) reported ark — unearned premiums of $1.03B in Q4 2025.
How has White Mountains Insurance Group's ark — unearned premiums changed year-over-year?
White Mountains Insurance Group's ark — unearned premiums increased by 20.3% year-over-year, from $853.3M to $1.03B.
What does ark — unearned premiums mean?
Represents the portion of written premiums that has been collected but not yet earned because the policy coverage period has not fully elapsed. This liability is a key indicator of future revenue potential and the segment's current volume of active insurance coverage. Monitoring this balance helps investors assess the segment's future earnings visibility and growth trends.