Arch Capital Group Casualty — Year Nine decreased by 21.7% to 4.7% in Q4 2025 compared to the prior quarter. Year-over-year, this metric declined by 21.7%, from 6.0% to 4.7%. This is a positive signal — lower values indicate better performance for this metric.
Minimal movement at this stage indicates that the reserves for these older years are well-settled.
Measures the cumulative net loss development for casualty insurance contracts nine years post-inception. It is a late-st...
Standard actuarial data point found in insurance company loss development tables.
acgl_segment_casualty_year_nine| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | 4.4% | 3.8% | 5.2% | 6% | 4.7% |
| QoQ Change | — | -13.6% | +36.8% | +15.4% | -21.7% |
| YoY Change | — | -13.6% | +36.8% | +15.4% | -21.7% |