Business Segments · Prior years
Reinsurance — Prior years
Arch Capital Group Reinsurance — Prior years decreased by 67.0% to -$172.00M in Q1 2026 compared to the prior quarter. Year-over-year, this metric declined by 35.4%, from -$127.00M to -$172.00M. Over 4 years (FY 2021 to FY 2025), Reinsurance — Prior years shows a downward trend with a 20.3% CAGR. This is a positive signal — lower values indicate better performance for this metric.
Analysis
StatementSegment
CategoryRisk
SignalLower is better
VolatilityModerate
First reportedQ1 2016
Last reportedQ1 2026
How to read this metric
Negative values (favorable development) indicate that previous reserves were set conservatively and are now being released.
Detailed definition
The impact on underwriting income resulting from changes in estimates of reserves for losses and loss adjustment expense...
Peer comparison
Used to evaluate the quality of a company's actuarial reserving process compared to industry peers.
Metric ID:
acgl_segment_reinsurance_prior_yearsHistorical Data
20 periods
| Q2 '21 | Q3 '21 | Q4 '21 | Q1 '22 | Q2 '22 | Q3 '22 | Q4 '22 | Q1 '23 | Q2 '23 | Q3 '23 | Q4 '23 | Q1 '24 | Q2 '24 | Q3 '24 | Q4 '24 | Q1 '25 | Q2 '25 | Q3 '25 | Q4 '25 | Q1 '26 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Value | -$53.70M | -$72.30M | -$31.30M | -$35.40M | -$54.40M | -$58.10M | -$48.30M | -$53.00M | -$51.00M | -$69.00M | -$29.00M | -$44.00M | -$51.00M | -$68.00M | -$69.00M | -$127.00M | -$81.00M | -$75.00M | -$103.00M | -$172.00M |
| QoQ Change | — | -34.6% | +56.7% | -13.1% | -53.7% | -6.8% | +16.9% | -9.7% | +3.8% | -35.3% | +58.0% | -51.7% | -15.9% | -33.3% | -1.5% | -84.1% | +36.2% | +7.4% | -37.3% | -67.0% |
| YoY Change | — | — | — | — | -1.3% | +19.6% | -54.3% | -49.7% | +6.3% | -18.8% | +40.0% | +17.0% | +0.0% | +1.4% | -137.9% | -188.6% | -58.8% | -10.3% | -49.3% | -35.4% |
Range-$172.00M – -$29.00M
CAGR+27.8%
Avg YoY Growth-32.5%
Median YoY Growth-14.5%
Current Streak2 quarters decline
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Frequently Asked Questions
- What is Arch Capital Group's reinsurance — prior years?
- Arch Capital Group (ACGL) reported reinsurance — prior years of -$172.00M in Q1 2026.
- How has Arch Capital Group's reinsurance — prior years changed year-over-year?
- Arch Capital Group's reinsurance — prior years decreased by 35.4% year-over-year, from -$127.00M to -$172.00M.
- What is the long-term trend for Arch Capital Group's reinsurance — prior years?
- Over 4 years (2021 to 2025), Arch Capital Group's reinsurance — prior years has grown at a 20.3% compound annual growth rate (CAGR), from -$184.10M to -$386.00M.
- What does reinsurance — prior years mean?
- The gain or loss from adjusting previous estimates of claim costs.