What is White Mountains Insurance Group's marine & energy — 5?

White Mountains Insurance Group (WTM) reported marine & energy — 5 of 6.4% in Q4 2025.

How has White Mountains Insurance Group's marine & energy — 5 changed year-over-year?

White Mountains Insurance Group's marine & energy — 5 increased by 30.6% year-over-year, from 4.9% to 6.4%.

What does marine & energy — 5 mean?

Tracks the loss ratio for the Marine and Energy segment, calculated as incurred losses divided by earned premiums. This metric is essential for evaluating the underwriting discipline and risk selection quality within this specific insurance vertical.

White Mountains Insurance Group WTM Marine & Energy — 5

Other product segments

Casualty-Active

10%+5.3%

Casualty-Runoff

8.5%0.0%

Specialty

6.3%-13.7%

Property and Accident & Health

2.9%+3.6%

Similar metrics at other companies

MKLMarine and energy — Earned premiums

$213.35M+4.7%

HIGMarine — Claims Reported

1,625,200%+1,700pp

MKLMarine and energy — Incurred losses and loss adjustment expenses, prior accident years

-$42.6M-191%

SEBMarine — Income Loss From Equity Method Investments

$1M0.0%

SEBMarine — Segment And Consolidated Operating Income Loss Total

$34M-40.4%

HIGMarine — Earned premiums and fee income

$72M+4.3%

Other financials

Income statement

See full

Revenue$517.8M-10.4%

Gross profit$475.1M-16.7%

Net income-$27.2M-180%

Balance sheet

See full

Total debt$834.8M+23.5%

Total equity$5.4B+19.2%

Total assets$13.2B+19.7%

Cash flow

See full

Operating cash flow$30.5M+176%

Valuation

See full

Market cap$4.99B+9.8%

Profitability

See full

Gross margin94.9%-3.7pp

Net margin28.4%—

Returns & leverage

See full

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:ShortdurationInsuranceContractsHistoricalClaimsDurationYearFive.

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 marine & energy — 5?: White Mountains Insurance Group (WTM) reported marine & energy — 5 of 6.4% in Q4 2025.
How has White Mountains Insurance Group's marine & energy — 5 changed year-over-year?: White Mountains Insurance Group's marine & energy — 5 increased by 30.6% year-over-year, from 4.9% to 6.4%.
What does marine & energy — 5 mean?: Tracks the loss ratio for the Marine and Energy segment, calculated as incurred losses divided by earned premiums. This metric is essential for evaluating the underwriting discipline and risk selection quality within this specific insurance vertical.