Arch Capital Group Ltd., the Bermuda-based insurer and reinsurer, has reported a 74.6% year-on-year rise in underwriting income to $728 million for the first quarter of 2026, as compared to $417 million in Q1’25.This was driven by strong growth in the underwriting performance of both the insurance and reinsurance business units. The re/insurer’s group-wide Q1’26 combined ratio improved by 8.4 percentage points to 81.7% in Q1’26, compared to 90.1% in the comparative prior year quarter.This was driven by a 9. ...