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White Mountains Insurance Group WTM Ark — Deferred Acquisition Costs

Other segment segments

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Other financials

Income statement

See full
Revenue$844.6M+22.5%
Gross profit$764.5M+18.2%
Net income$199.5M+62.3%

Balance sheet

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Total debt$932.5M+34.2%
Total equity$5.4B+16.0%
Total assets$13.8B+16.4%

Cash flow

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Operating cash flow-$55.5M-131%

Valuation

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Market cap$5.3B+15.6%
P/E4.7×
P/S1.4×-0.5×

Profitability

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Gross margin94.1%-3.2pp
Net margin29.3%

Returns & leverage

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Return on equity22.4%
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:SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts.

The source filing: White Mountains Insurance Group’s 10-K, filed February 27, 2026.

Filed
Feb 27, 2026, 9:21 AM EST
Fiscal year
FY2025
Accession
0001628280-26-012603
Years ended: / December 31, 2025Column A / Millions / Years ended: / December 31, 2025Column B / Deferred Acquisition CostsColumn C / Future Policy Benefits, Losses, Claimsand Loss ExpensesColumn D / Unearned PremiumsColumn E / Other Policy Claims and Benefits PayableColumn F / Premiums EarnedColumn G / Net Investment IncomeColumn H / Benefits,Claims,Losses and Settlement ExpensesColumn I / Amortizationof Deferred Acquisition CostsColumn J / Other Operating ExpensesColumn K / Premiums Written
Ark/WM Outrigger$211.1$2,481.0$1,026.1$1,697.4$106.5$844.2$374.4$143.9$1,811.6
HG Global96.9327.930.827.18.061.4
Bamboo Captive (1)26.71.818.09.716.1
Bamboo CRV2.513.69.622.21.520.08.31.4
December 31, 2024
Ark/WM Outrigger165.22,127.5853.31,587.890.7855.8294.1136.11,679.1
HG Global86.6297.331.732.28.2.256.0
Bamboo Captive10.217.831.539.41.420.614.150.0

Item 16. Form 10-K Summary.

FAQ

What is White Mountains Insurance Group's ark — deferred acquisition costs?
White Mountains Insurance Group (WTM) reported ark — deferred acquisition costs of $211.1M in Q4 2025.
How has White Mountains Insurance Group's ark — deferred acquisition costs changed year-over-year?
White Mountains Insurance Group's ark — deferred acquisition costs increased by 27.8% year-over-year, from $165.2M to $211.1M.
What does ark — deferred acquisition costs mean?
Reflects the capitalized costs directly related to the acquisition of new insurance contracts, such as commissions and underwriting expenses, which are amortized over the life of the policies. This metric is used to match expenses with the period in which the related premiums are earned. Changes in this balance provide insight into the segment's growth trajectory and the efficiency of its customer acquisition efforts.

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