White Mountains Insurance Group WTM Casualty-Runoff — 8

Other product segments

Similar metrics at other companies

RLICasualty — Reinsurance Recoverable For Unpaid Claims And Claims Adjustments

$276.29M-2.6%

WRBCasualty — Cumulative paid claims and claim adjustment expenses, net of reinsurance

$2.08B+644%

SIGICasualty lines — Cumulative Number of Reported Claims

305,700%-303,994,300pp

WRBCasualty — Total due from reinsurers on unpaid claims

$97.49M-7.1%

KNSLCasualty - occurrence — Cumulative paid claims and allocated claim adjustment expense, net

$686.48M+712%

WRBCasualty — Average annual percentage payout of incurred claims by age, net of reinsurance, Year 2

10.5%-0.5pp

Questions, answered.

What is White Mountains Insurance Group's casualty-runoff — 8?

White Mountains Insurance Group (WTM) reported casualty-runoff — 8 of 4.2% in Q4 2025.

How has White Mountains Insurance Group's casualty-runoff — 8 changed year-over-year?

White Mountains Insurance Group's casualty-runoff — 8 increased by 2.4% year-over-year, from 4.1% to 4.2%.

What does casualty-runoff — 8 mean?

This metric measures the ratio of paid claims to the total reserves held for the casualty runoff segment. It provides a view into the velocity of claim settlements and the remaining duration of the liability portfolio. A stable ratio suggests predictable claim resolution patterns.