Progressive's August underlying CoR increases 3.2 points sequentially to 91.1% Kyoung-son Song September 15, 2023 Twitter LinkedIn Show more sharing options Copy Link URLCopied! Print Twitter LinkedIn Progressive’s August underlying combined ratio deteriorated sequentially by 3.2 points to 91.1%, partly impacted by catastrophe losses from Hurricane Idalia. To unlock this article Register for a free trial Already a subscriber? Login now