Cincinnati Financial Personal Auto — 2 increased by 4.2% to 17.3% in Q4 2025 compared to the prior quarter. Year-over-year, this metric grew by 4.2%, from 16.6% to 17.3%. This increase may warrant attention — for this metric, lower values are generally preferred.
An increase indicates unfavorable reserve development (under-reserved), while a decrease indicates favorable development (over-reserved).
This metric represents the development of claims from prior accident years for the personal automobile insurance segment...
Peers report this as 'prior year reserve development' or 'prior accident year development' within their personal auto segment disclosures.
cinf_segment_personal_auto_2| Q4 '21 | Q4 '22 | Q4 '23 | Q4 '24 | Q4 '25 | |
|---|---|---|---|---|---|
| Value | 16.1% | 16.1% | 16.4% | 16.6% | 17.3% |
| QoQ Change | — | +0.0% | +1.9% | +1.2% | +4.2% |
| YoY Change | — | +0.0% | +1.9% | +1.2% | +4.2% |