ACGL vs CNC 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.

Centene is a managed care organization that focuses on government-sponsored healthcare plans, including Medicaid, Medicare, and the individual exchanges. Centene served 20 million medical members as of December 2025, mostly in Medicaid (about 64% of membership), the individual exchanges (about 28%), and Medicare (about 5%). The company also provides Medicare Part D pharmaceutical plans.