ARCH CAPITAL GROUP LTD. (ACGL)

Arch Capital Group Ltd. is a publicly listed Bermuda exempted company and part of the S&P 500 index, with approximately $26.9 billion in capital at December 31, 2025. Through its wholly owned subsidiaries it provides insurance, reinsurance and mortgage insurance on a worldwide basis. Although it is positioned to offer a full range of property, casualty and mortgage insurance and reinsurance lines, it focuses on writing specialty lines. In 2025 it wrote $16.5 billion of net premiums and reported net income available to common shareholders of $4.4 billion, and book value per share was $65.11 at year-end, up from $53.11 a year earlier.

The business is organized around three underwriting platforms. The insurance platform spans Bermuda, the U.S., Canada, the U.K. (Arch Insurance (U.K.) and a Lloyd's managing agency and syndicate, expanded through the 2019 Barbican acquisition) and Ireland (Arch Insurance (EU), with branches in Italy, Spain, France, the Netherlands and the U.K.). On August 1, 2024 it acquired Allianz's U.S. Middle Market Property and Casualty and U.S. Entertainment businesses. The reinsurance platform includes Arch Re Bermuda, Arch Re U.S., and Arch Re Europe (Ireland-headquartered, with branches in Switzerland, the U.K. and France), a Danish agency focused on Accident & Health, and property facultative reinsurance in the U.S., Canada and Europe. The 2021 Somerset Group acquisition added a U.K. motor insurance managing general agent with direct and aggregator distribution, an affiliated insurer and an integrated claims operation. The mortgage platform covers U.S. primary mortgage insurance, participation in government sponsored enterprise credit risk-sharing transactions, direct insurance to lenders for mortgages held in portfolio or in non-agency securitizations, European and U.K. mortgage insurance, and lenders' mortgage insurance in Australia through Arch Lenders Mortgage Indemnity Ltd. Other holdings include a 30% interest in Greysbridge (parent of Somers), about 25% of Premia Holdings, and 29.5% of Coface, a France-based trade credit insurer.

Customers and markets include U.S. mortgage lenders, with its U.S. mortgage insurers approved as eligible insurers by Fannie Mae and Freddie Mac, as well as lenders in Europe, the U.K. and Australia. Its insurance and reinsurance lines serve markets in North America, Europe and the U.K., and the company describes its business as written worldwide.

Arch Capital's registered office is in Hamilton, Bermuda, and its principal executive offices are at Waterloo House, 100 Pitts Bay Road, Pembroke, Bermuda. The company was formed in September 2000 and launched its underwriting initiative in October 2001 with a $763.2 million equity infusion. Its U.S. mortgage platform was established in 2014 and expanded in 2016 through the acquisition of United Guaranty Corporation. Since its share repurchase program began in 2007, it has repurchased 455 million common shares for $7.8 billion, including about $1.9 billion in 2025, with $1.1 billion of authorization remaining.