Arch Capital Group Property, energy, marine and aviation — Year Four increased by 45.9% to 8.9% in Q4 2025 compared to the prior quarter. Year-over-year, this metric grew by 45.9%, from 6.1% to 8.9%. This increase may warrant attention — for this metric, lower values are generally preferred.
Decreases indicate favorable reserve development and conservative initial reserving, 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...
Commonly reported in insurance actuarial tables as part of loss development triangles by peer property and casualty insurers.
acgl_segment_property_energy_marine_and_aviation_year_four| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | 6.6% | 5.2% | 6% | 6.1% | 8.9% |
| QoQ Change | — | -21.2% | +15.4% | +1.7% | +45.9% |
| YoY Change | — | -21.2% | +15.4% | +1.7% | +45.9% |