White Mountains Insurance Group WTM Bamboo Captive — Discount, if any, deducted in Column C

Similar metrics at other companies

HIGAutomobiles — Amount of discount

0%—

AIGNet loss reserve discount

$1.27B+9.8%

TRVDiscount (Net of Reinsurance)

$996M-3.1%

HIGShort-Duration Insurance, Other — Amount of discount

$10M-28.6%

CNAWorkers' Compensation — Adjustment for development on a discounted basis

$500K+200%

HIGOther operations — Amount of discount

$0—

Revenue$517.8M-10.4%

Gross profit$475.1M-16.7%

Net income-$27.2M-180%

Total debt$834.8M+23.5%

Total equity$5.4B+19.2%

Total assets$13.2B+19.7%

Operating cash flow$30.5M+176%

Market cap$4.99B+9.8%

Gross margin94.9%-3.7pp

Net margin28.4%—

Return on equity21.2%—

Debt / equity0.2×0.0×

Reported directly by White Mountains Insurance Group in its filing.

Tagged under the XBRL concept us-gaap:SupplementalInformationForPropertyCasualtyInsuranceUnderwritersDiscountDeductedFromReserves.

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

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What is White Mountains Insurance Group's bamboo captive — discount, if any, deducted in column c?: White Mountains Insurance Group (WTM) reported bamboo captive — discount, if any, deducted in column c of $0 in Q4 2025.
What does bamboo captive — discount, if any, deducted in column c mean?: The financial adjustment representing the present value discount applied to loss reserves. This metric indicates the impact of time-value-of-money considerations on the captive's reported claim liabilities.