Arch Capital Group Ltd

Arch Capital Group Ltd. (NASDAQ: ACGL) is a Bermuda-exempted holding company and S&P 500 constituent with approximately $28.3 billion in capital and $49.5 billion in total investable assets. The company provides insurance, reinsurance, and mortgage insurance on a worldwide basis through its wholly owned subsidiaries. Its Insurance segment offers specialty commercial lines — including other liability (occurrence and claims-made), property and short-tail specialty, commercial automobile, commercial multi-peril, and workers compensation — primarily in North America, Bermuda, the United Kingdom, continental Europe, and Australia. Its Reinsurance segment underwrites casualty, property catastrophe, property excluding catastrophe, specialty, marine and aviation, and other reinsurance lines globally. Its Mortgage segment writes U.S. primary mortgage insurance predominantly on loans sold to Fannie Mae and Freddie Mac, credit risk transfer reinsurance, and international mortgage insurance and reinsurance covering loans primarily in Australia and Europe. The company completed the acquisition of Allianz's U.S. MidCorp and Entertainment insurance businesses in August 2024, broadening its specialty insurance platform. The investment portfolio maintains high credit quality (AA-/Aa3 average) with a 3.50-year average effective duration. Updated Jul 28, 2026