Top reinsurers’ four-year average CoR sits at 102.3%: Aon Rachel Dalton April 20, 2021 Twitter LinkedIn Show more sharing options Copy Link URLCopied! Print Twitter LinkedIn The average combined ratio (CoR) for a cohort of top global reinsurers over the past four years is 102.3%, according to an Aon study. To unlock this article Register for a free trial Already a subscriber? Login now