Group 1 - The top 50 global property/casualty insurers experienced an overall premium growth of 8.3% in 2024, with four insurers achieving growth rates exceeding 20% [1][2] - Progressive Corp. recorded a significant 20.5% increase in U.S. GAAP-reported gross earned premiums, surpassing $72 billion, and is now ranked fourth among the top 50 global insurers [2][3] - RenaissanceRe Holdings Ltd. achieved the highest growth rate at 31.1%, making its debut on the global list at 44th place with approximately $12 billion in gross earned premiums [4][5] Group 2 - Auto-Owners Insurance Group and Arch Capital Group also reported substantial growth, with increases of 21.7% and 21% respectively, ranking 40th and 29th in the top 50 [5] - The average loss ratio for the top 50 insurers improved to 64.3 in 2024 from 66.8 in 2023, indicating better overall performance in managing claims [7][12] - State Farm retained its first-place ranking despite having the highest loss ratio among large insurers at 78.2, while Progressive's loss ratio was reported at 69.1, placing it 31st in loss ratio rankings [12] Group 3 - The majority of the top 50 insurers reported increased premium levels for 2024 compared to 2023, with only AIG and Nationwide Mutual Group showing declines [17] - Notable shifts in rankings included Allstate moving to eighth place and Liberty Mutual to ninth, while Zurich Insurance Group is now ranked 11th [18] - S&P GMI highlighted that over half of the top 50 global P/C insurers are based in North America, with significant representation from European and Asia Pacific insurers [16]