Arch Capital Group Property, energy, marine and aviation — Year Eight increased by 266.7% to 1.1% in Q4 2025 compared to the prior quarter. Year-over-year, this metric grew by 266.7%, from 0.3% to 1.1%. This increase may warrant attention — for this metric, lower values are generally preferred.
Decreases indicate favorable reserve development, while increases suggest adverse development and potential under-reserving.
Represents the development of loss reserves for the property, energy, marine, and aviation underwriting segment specific...
Standard actuarial metric for assessing long-tail liability and property claim accuracy across the insurance industry.
acgl_segment_property_energy_marine_and_aviation_year_eight| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | 0.5% | 2.2% | 1.9% | 0.3% | 1.1% |
| QoQ Change | — | +340.0% | -13.6% | -84.2% | +266.7% |
| YoY Change | — | +340.0% | -13.6% | -84.2% | +266.7% |