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White Mountains Insurance Group WTM Bamboo CRV — Net Premiums written
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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:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersPremiumsWritten.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 2024 | 5.8 | 12.1 | — | 29.0 | 32.7 | .4 | 12.1 | — | 12.1 | — | 61.7 |
| 2023 | — | — | — | — | — | — | — | — | — | — | — |
Item 16. Form 10-K Summary.
FAQ
- What is White Mountains Insurance Group's bamboo CRV — net premiums written?
- White Mountains Insurance Group (WTM) reported bamboo CRV — net premiums written of $350K in Q4 2025.
- How has White Mountains Insurance Group's bamboo CRV — net premiums written changed year-over-year?
- White Mountains Insurance Group's bamboo CRV — net premiums written decreased by 97.7% year-over-year, from $15.43M to $350K.
- What does bamboo CRV — net premiums written mean?
- This metric represents the total premiums on policies issued by the segment during a specific period, net of any premiums ceded to reinsurers. It serves as a primary indicator of the segment's top-line growth and its success in capturing market share within its target insurance niche. Changes in this figure reflect the segment's underwriting volume and its strategic reliance on reinsurance to manage risk exposure.
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