Business Segments · Loss ratio
Reinsurance — Loss ratio
Arch Capital Group Reinsurance — Loss ratio increased by 0.2% to 51.7% in Q1 2026 compared to the prior quarter. Year-over-year, this metric declined by 22.7%, from 66.9% to 51.7%. This increase may warrant attention — for this metric, lower values are generally preferred.
Analysis
StatementSegment
CategoryProfitability
SignalLower is better
VolatilityModerate
First reportedQ1 2016
Last reportedQ1 2026
How to read this metric
A lower ratio indicates better underwriting performance and more effective risk selection.
Detailed definition
The ratio of net losses and loss adjustment expenses incurred to net premiums earned within the reinsurance segment. It...
Peer comparison
Standard industry metric used by all property and casualty insurers to assess core underwriting health.
Metric ID:
acgl_segment_reinsurance_loss_ratioHistorical Data
15 periods
| Q2 '21 | Q3 '21 | Q1 '22 | Q2 '22 | Q3 '22 | Q1 '23 | Q2 '23 | Q3 '23 | Q1 '24 | Q2 '24 | Q3 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q1 '26 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Value | 62.9% | 80.4% | 56.5% | 57.9% | 92.6% | 57.6% | 55.3% | 56.4% | 53% | 56.5% | 69.6% | 66.9% | 54.1% | 51.6% | 51.7% |
| QoQ Change | — | +27.8% | -29.7% | +2.5% | +59.9% | -37.8% | -4.0% | +2.0% | -6.0% | +6.6% | +23.2% | -3.9% | -19.1% | -4.6% | +0.2% |
| YoY Change | — | — | — | -7.9% | +15.2% | +1.9% | -4.5% | -39.1% | -8.0% | +2.2% | +23.4% | +26.2% | -4.2% | -25.9% | -22.7% |
Range51.6% – 92.6%
CAGR-5.4%
Avg YoY Growth-3.6%
Median YoY Growth-4.4%
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Frequently Asked Questions
- What is Arch Capital Group's reinsurance — loss ratio?
- Arch Capital Group (ACGL) reported reinsurance — loss ratio of 51.7% in Q1 2026.
- How has Arch Capital Group's reinsurance — loss ratio changed year-over-year?
- Arch Capital Group's reinsurance — loss ratio decreased by 22.7% year-over-year, from 66.9% to 51.7%.
- What does reinsurance — loss ratio mean?
- The percentage of earned premiums paid out as insurance claims.