Products & Services · Year Four
Casualty — Year Four
Arch Capital Group Casualty — Year Four increased by 1.7% to 12.1% in Q4 2025 compared to the prior quarter. Year-over-year, this metric grew by 1.7%, from 11.9% to 12.1%. This increase may warrant attention — for this metric, lower values are generally preferred.
Analysis
StatementSegment
CategoryRisk
SignalLower is better
VolatilityModerate
First reportedQ4 2018
Last reportedQ4 2025
How to read this metric
An increase may indicate adverse loss development, while a decrease suggests favorable reserve releases.
Detailed definition
Represents the cumulative net loss development or claims experience for casualty insurance policies four years after the...
Peer comparison
Commonly reported as part of loss development triangles in insurance statutory filings.
Metric ID:
acgl_segment_casualty_year_fourHistorical Data
5 periods
| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | 11.3% | 11.3% | 10.4% | 11.9% | 12.1% |
| QoQ Change | — | +0.0% | -8.0% | +14.4% | +1.7% |
| YoY Change | — | +0.0% | -8.0% | +14.4% | +1.7% |
Range10.4% – 12.1%
CAGR+7.1%
Avg YoY Growth+2.0%
Median YoY Growth+0.8%
Current Streak2 quarters growth
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Frequently Asked Questions
- What is Arch Capital Group's casualty — year four?
- Arch Capital Group (ACGL) reported casualty — year four of 12.1% in Q4 2025.
- How has Arch Capital Group's casualty — year four changed year-over-year?
- Arch Capital Group's casualty — year four increased by 1.7% year-over-year, from 11.9% to 12.1%.
- What does casualty — year four mean?
- The claims experience for casualty policies four years after they were written.