Allstate warns of 10-point jump to 109% CoR in Q4 Kyoung-son Song January 18, 2023 Twitter LinkedIn Show more sharing options Copy Link URLCopied! Print Twitter LinkedIn Personal lines insurer Allstate has estimated a combined ratio of 109.1% for Q4 2022, driven by claim reserves increases, prior-year claim reserves additions and Winter Storm Elliott costs. To unlock this article Register for a free trial Already a subscriber? Login now