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White Mountains Insurance Group WTM Bamboo Captive — Amortization of deferred policy acquisition costs
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Where this comes from
Reported directly by White Mountains Insurance Group in its filing.
Tagged under the XBRL concept us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersAmortizationOfDeferredPolicyAcquisitionCosts.
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
| Column A / Affiliation withregistrant | Column B / Deferred acquisitioncosts | Column C / Reservesfor Unpaid Claims and Claims Adjustment Expenses | Column D / Discount, if any, deducted in Column C | Column E / Unearned Premiums | Column F / Earned Premiums | Column G / Net investmentincome | Column H / Claims and Claims Adjustment Expenses Incurred Related to / Current Year | Column H / Claims and Claims Adjustment Expenses Incurred Related to / Prior Year | Column I / Amortizationof deferredpolicy acquisitioncosts | Column J / Paid Claims and Claims Adjustment Expenses | Column K / Net Premiumswritten |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2024 | 165.2 | 2,127.5 | — | 853.3 | 1,587.8 | 90.7 | 914.4 | (58.6) | 294.1 | 416.7 | 1,679.1 |
| 2023 | 145.3 | 1,605.1 | — | 743.6 | 1,409.7 | 61.4 | 706.9 | 19.9 | 273.1 | 407.9 | 1,520.9 |
| Bamboo Captive (1) | |||||||||||
| 2025 | — | — | — | — | $26.7 | $1.8 | $16.0 | $2.0 | $9.7 | $27.2 | $16.1 |
| 2024 | 10.2 | 17.8 | — | 31.5 | 39.4 | 1.4 | 17.3 | 3.3 | 14.1 | 12.0 | 50.0 |
| 2023 | — | — | — | — | — | — | — | — | — | — | — |
| Bamboo CRVs | |||||||||||
| 2025 | $2.5 | $13.6 | — | $9.6 | $22.2 | $1.5 | $16.2 | $3.8 | $8.3 | $16.4 | $1.4 |
Item 16. Form 10-K Summary.
FAQ
- What is White Mountains Insurance Group's bamboo captive — amortization of deferred policy acquisition costs?
- White Mountains Insurance Group (WTM) reported bamboo captive — amortization of deferred policy acquisition costs of $2.43M in Q4 2025.
- How has White Mountains Insurance Group's bamboo captive — amortization of deferred policy acquisition costs changed year-over-year?
- White Mountains Insurance Group's bamboo captive — amortization of deferred policy acquisition costs decreased by 31.2% year-over-year, from $3.53M to $2.43M.
- What does bamboo captive — amortization of deferred policy acquisition costs mean?
- This represents the systematic expensing of costs directly associated with acquiring, underwriting, and issuing insurance policies over the life of the related contracts. It reflects the timing of recognizing acquisition expenses relative to the earned premium revenue. Monitoring this helps investors understand the efficiency of policy acquisition and the impact of deferred costs on the segment's profitability.
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