Products & Services · Year Four
Property catastrophe — Year Four
Arch Capital Group Property catastrophe — Year Four decreased by 35.1% to 138.8% in Q4 2025 compared to the prior quarter. Year-over-year, this metric declined by 35.1%, from 213.9% to 138.8%. This is a positive signal — lower values indicate better performance for this metric.
Analysis
StatementSegment
CategoryRisk
SignalLower is better
VolatilityModerate
First reportedQ4 2018
Last reportedQ4 2025
How to read this metric
A negative value indicates favorable reserve development, while a positive value suggests adverse development requiring reserve strengthening.
Detailed definition
Represents the net loss development or reserve adjustment for property catastrophe reinsurance contracts four years afte...
Peer comparison
Commonly reported by reinsurers as 'prior year reserve development' by accident year.
Metric ID:
acgl_segment_property_catastrophe_year_fourHistorical Data
5 periods
| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | -14.2% | -115.6% | -41.9% | 213.9% | 138.8% |
| QoQ Change | — | -714.1% | +63.8% | +610.5% | -35.1% |
| YoY Change | — | -714.1% | +63.8% | +610.5% | -35.1% |
Range-115.6% – 213.9%
CAGR+877.5%
Avg YoY Growth-18.7%
Median YoY Growth+14.3%
Similar Metrics at Other Companies
Frequently Asked Questions
- What is Arch Capital Group's property catastrophe — year four?
- Arch Capital Group (ACGL) reported property catastrophe — year four of 138.8% in Q4 2025.
- How has Arch Capital Group's property catastrophe — year four changed year-over-year?
- Arch Capital Group's property catastrophe — year four decreased by 35.1% year-over-year, from 213.9% to 138.8%.
- What does property catastrophe — year four mean?
- The net change in estimated losses for property catastrophe policies four years after they were written.