What is White Mountains Insurance Group's marine & energy — 1?

White Mountains Insurance Group (WTM) reported marine & energy — 1 of 12.1% in Q4 2025.

How has White Mountains Insurance Group's marine & energy — 1 changed year-over-year?

White Mountains Insurance Group's marine & energy — 1 decreased by 6.2% year-over-year, from 12.9% to 12.1%.

What does marine & energy — 1 mean?

This metric acts as a primary identifier or index for the Marine and Energy segment's performance reporting. It serves as a baseline reference point for tracking segment-specific financial metrics and operational data over time.

White Mountains Insurance Group WTM Marine & Energy — 1

Other product segments

Property and Accident & Health

27.4%+15.1%

Specialty

18.2%-5.7%

Casualty-Runoff

8.8%0.0%

Casualty-Active

3.8%-13.6%

Similar metrics at other companies

GDMarine Systems — Other

$0—

GDMarine Systems — Other Segment Items

-$4.03B-20.6%

NOVEnergy Products And Services — Segment Reporting Other Item Amount

$8M+60.0%

KEXMarine Transportation — Segment Reporting Other Item Amount

$21.41M+11.4%

SEBMarine — Other Commitment

$75M—

CATPower & Energy — Other segment reporting items

$3M+110%

Other financials

Income statement

See full

Revenue$517.8M-10.4%

Gross profit$475.1M-16.7%

Net income-$27.2M-180%

Balance sheet

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Total debt$834.8M+23.5%

Total equity$5.4B+19.2%

Total assets$13.2B+19.7%

Cash flow

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Operating cash flow$30.5M+176%

Valuation

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Market cap$4.99B+9.8%

P/E4.8×—

P/S1.4×-0.7×

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:ShortdurationInsuranceContractsHistoricalClaimsDurationYearOne.

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 — 1?: White Mountains Insurance Group (WTM) reported marine & energy — 1 of 12.1% in Q4 2025.
How has White Mountains Insurance Group's marine & energy — 1 changed year-over-year?: White Mountains Insurance Group's marine & energy — 1 decreased by 6.2% year-over-year, from 12.9% to 12.1%.
What does marine & energy — 1 mean?: This metric acts as a primary identifier or index for the Marine and Energy segment's performance reporting. It serves as a baseline reference point for tracking segment-specific financial metrics and operational data over time.