Products & Services · Year Nine

Casualty — Year Nine

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.

Analysis

StatementSegment
CategoryRisk
SignalLower is better
VolatilityStable
First reportedQ4 2018
Last reportedQ4 2025

How to read this metric

Minimal movement at this stage indicates that the reserves for these older years are well-settled.

Detailed definition

Measures the cumulative net loss development for casualty insurance contracts nine years post-inception. It is a late-st...

Peer comparison

Standard actuarial data point found in insurance company loss development tables.

Metric ID: acgl_segment_casualty_year_nine

Historical Data

5 periods
 Q4 '21Q4 '22Q4 '23Q4 '24Q4 '25
Value4.4%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%
Range3.8%6%
CAGR+6.8%
Avg YoY Growth+4.2%
Median YoY Growth+0.9%

Frequently Asked Questions

What is Arch Capital Group's casualty — year nine?
Arch Capital Group (ACGL) reported casualty — year nine of 4.7% in Q4 2025.
How has Arch Capital Group's casualty — year nine changed year-over-year?
Arch Capital Group's casualty — year nine decreased by 21.7% year-over-year, from 6.0% to 4.7%.
What does casualty — year nine mean?
The claims experience for casualty policies nine years after they were written.