ACGL vs STT Comparison

Arch Capital Group Ltd is a Bermuda company that writes insurance and reinsurance with operations in the United States, Canada, Europe, Australia, and the United Kingdom. The business operates through three underwriting segments: insurance, reinsurance, and mortgage. The insurance segment provides specialty risk solutions to clients across various industries. The reinsurance segment provides reinsurance services which cover property catastrophe, property, liability, marine, aviation and space, trade credit and surety, agriculture, accident, life and health, and political risk. The mortgage business provides risk management and risk financing products to the mortgage insurance sectors through platforms in the U.S., Europe and Bermuda.

State Street is a leading provider of financial services, including investment servicing, investment management, and investment research and trading. With approximately $49 trillion in assets under custody and administration, and $5.1 trillion in assets under management, as of June 30, 2025, State Street operates globally in more than 100 geographic markets and employs about 53,000 worldwide.