Products & Services · Year Three
Third party occurrence business — Year Three
Arch Capital Group Third party occurrence business — Year Three increased by 0.8% to 12.4% in Q4 2025 compared to the prior quarter. Year-over-year, this metric grew by 0.8%, from 12.3% to 12.4%. This increase may warrant attention — for this metric, lower values are generally preferred.
Analysis
StatementSegment
CategoryEfficiency
SignalLower is better
VolatilityStable
First reportedQ4 2018
Last reportedQ4 2025
How to read this metric
Consistent development patterns in year three suggest stable reserve adequacy and predictable claim behavior.
Detailed definition
This metric tracks the loss development or claim activity observed during the third year following the inception of the...
Peer comparison
Standard actuarial development triangle component used to analyze claim reporting patterns across the industry.
Metric ID:
acgl_segment_third_party_occurrence_business_year_threeHistorical Data
5 periods
| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | 11.6% | 11.8% | 11.5% | 12.3% | 12.4% |
| QoQ Change | — | +1.7% | -2.5% | +7.0% | +0.8% |
| YoY Change | — | +1.7% | -2.5% | +7.0% | +0.8% |
Range11.5% – 12.4%
CAGR+6.9%
Avg YoY Growth+1.7%
Median YoY Growth+1.3%
Current Streak2 quarters growth
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Frequently Asked Questions
- What is Arch Capital Group's third party occurrence business — year three?
- Arch Capital Group (ACGL) reported third party occurrence business — year three of 12.4% in Q4 2025.
- How has Arch Capital Group's third party occurrence business — year three changed year-over-year?
- Arch Capital Group's third party occurrence business — year three increased by 0.8% year-over-year, from 12.3% to 12.4%.
- What does third party occurrence business — year three mean?
- The loss activity observed during the third year of an underwriting period.