Arch Capital Group ACGL Casualty — Prior years

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Similar metrics at other companies

HGCasualty Lines — Prior years

-$300K-115%

WTMCasualty-Active — Prior Year

$1.08M-4.4%

SPNTCasualty — Year 1

17.8%-0.4pp

SIGICasualty lines — Incurred loss and loss expense for claims occurring in the prior year

$0+100%

GLRECasualty — Year 1

23.2%-0.4pp

GLRECasualty — All outstanding liabilities before 2016, net of reinsurance

817,800,000%+669,000,000pp

Questions, answered.

What is Arch Capital Group's casualty — prior years?

Arch Capital Group (ACGL) reported casualty — prior years of $20M in Q1 2026.

How has Arch Capital Group's casualty — prior years changed year-over-year?

Arch Capital Group's casualty — prior years increased by 150.0% year-over-year, from $8M to $20M.

What is the long-term trend for Arch Capital Group's casualty — prior years?

Over 2 years (2023 to 2025), Arch Capital Group's casualty — prior years has grown at a 23.4% compound annual growth rate (CAGR), from $46M to $70M.

What does casualty — prior years mean?

Represents the net favorable or unfavorable development of loss reserves established in previous underwriting years for the casualty segment. This metric reflects the accuracy of initial actuarial estimates compared to actual claims experience as they mature over time.