Arch Capital Group Marine and aviation — Year Six increased by 30.6% to 6.4% in Q4 2025 compared to the prior quarter. Year-over-year, this metric grew by 30.6%, from 4.9% to 6.4%.
Stable or declining loss development at this stage indicates accurate initial reserving practices.
Represents the cumulative net premiums earned or loss development attributed to the sixth year of underwriting activity...
Commonly found in actuarial disclosures for specialty insurance lines.
acgl_segment_marine_and_aviation_year_six| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | 2.9% | 3% | 3.4% | 4.9% | 6.4% |
| QoQ Change | — | +3.4% | +13.3% | +44.1% | +30.6% |
| YoY Change | — | +3.4% | +13.3% | +44.1% | +30.6% |