Products & Services · Year One
Specialty — Year One
Arch Capital Group Specialty — Year One decreased by 5.4% to 26.2% in Q4 2025 compared to the prior quarter. Year-over-year, this metric declined by 5.4%, from 27.7% to 26.2%. This is a positive signal — lower values indicate better performance for this metric.
Analysis
StatementSegment
CategoryEfficiency
SignalLower is better
VolatilityVolatile
First reportedQ4 2018
Last reportedQ4 2025
How to read this metric
Higher-than-expected losses in year one can indicate poor initial pricing or an unexpected spike in frequency for new business.
Detailed definition
This represents the loss development or performance metrics specifically for the first year of an underwriting cohort's...
Peer comparison
Standard component of loss development triangle analysis in the insurance industry.
Metric ID:
acgl_segment_specialty_year_oneHistorical Data
5 periods
| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | 26.3% | 29.9% | 28.6% | 27.7% | 26.2% |
| QoQ Change | — | +13.7% | -4.3% | -3.1% | -5.4% |
| YoY Change | — | +13.7% | -4.3% | -3.1% | -5.4% |
Range26.2% – 29.9%
CAGR-0.4%
Avg YoY Growth+0.2%
Median YoY Growth-3.7%
Current Streak3 quarters decline
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Frequently Asked Questions
- What is Arch Capital Group's specialty — year one?
- Arch Capital Group (ACGL) reported specialty — year one of 26.2% in Q4 2025.
- How has Arch Capital Group's specialty — year one changed year-over-year?
- Arch Capital Group's specialty — year one decreased by 5.4% year-over-year, from 27.7% to 26.2%.
- What does specialty — year one mean?
- Performance data for the first year of a specific specialty insurance underwriting period.