The insurance division of Arch Capital Group Ltd achieved gross written premium of approximately £1.9bn in the three months ended 30th September 2025. This was up by 9.7% on the same period last year. Its combined ratio of 93.4% has nudged up from 93.1%. The reinsurance division achieved gross written premium of approximately £1.9bn, down by 9% on Q3 last year. Its combined ratio improved to 76.1% from 92.3%.

In addition to operations in North America, Bermuda the EU and Australia, Arch writes more than 20 lines of business in the London Market and through Lloyd’s Syndicates 2012 and 1955.

Nicolas Papadopoulo, chief executive officer of Arch, said: “We are extremely pleased with our financial performance this quarter, which resulted in us delivering record-level results of operating income.

“While we benefitted from a relatively quiet quarter for natural catastrophes, we remain upbeat about our ability to perform well in the current market, which should lead to strong financial results on behalf of our shareholders.”