Question · Q3 2025
Mike Zurimski questioned whether RenaissanceRe's property IBNR and additional case reserves, currently hovering above historical levels, indicate added conservatism. He also asked for a characterization of the year-to-date (nine months) combined ratios as below average, better than average, or normal, considering the impact of large losses.
Answer
President and CEO Kevin O'Donnell stated there is no added conservatism or shift in reserve building. He noted that property reserves are event-driven, and movements in large events can significantly impact development. O'Donnell found it difficult to characterize the year-to-date combined ratio as wildly dissimilar from the modeled portfolio, given the mix of a large wildfire loss, light wind season, favorable development, and strong pricing.