White Mountains Insurance Group WTM Specialty — 4

Other product segments

Similar metrics at other companies

ACGLSpecialty — Liabilities for losses and loss adjustment expenses, net of reinsurance

366,900,000,000%+92,000,000,000pp

RDNSpecialty Insurance — Liability For Claims And Claims Adjustment Expense

$1.42B—

RDNSpecialty Insurance — Liability For Unpaid Claims And Claims Adjustment Expense Period Increase Decrease

$88M—

ACGLSpecialty — Incurred losses and allocated loss adjustment expenses, net of reinsurance

856,400,000,000%+686,800,000,000pp

THGSpecialty Lines — Supplemental Information For Property Casualty Insurance Underwriters Prior Year Claims And Claims Adjustment Expense

-$20M-8.7%

ORISpecialty Insurance — Claims and claim adjustment expenses attributable to insured events of prior years

$610.9M+19.6%

Questions, answered.

What is White Mountains Insurance Group's specialty — 4?

White Mountains Insurance Group (WTM) reported specialty — 4 of 8.7% in Q4 2025.

How has White Mountains Insurance Group's specialty — 4 changed year-over-year?

White Mountains Insurance Group's specialty — 4 increased by 77.6% year-over-year, from 4.9% to 8.7%.

What does specialty — 4 mean?

Tracks the periodic re-estimation of claim liabilities for the specialty segment, specifically focusing on developments originating from prior fiscal years. Positive or negative adjustments provide insight into the volatility and predictability of the segment's insurance portfolio.