Radian Group Inc. provides mortgage insurance on domestic residential First-liens and other products and services. The Company operates in two business segments: mortgage insurance and MRES. The mortgage insurance segment provides credit-related insurance coverage, principally through private mortgage insurance, to mortgage lending institutions. The Company conducts mortgage insurance business primarily through Radian Guaranty, the Company’s principal mortgage insurance subsidiary. The MRES segment provides services and solutions to the mortgage and real estate industries primarily through Clayton. The Company also provides direct insurance and reinsurance on credit-based risks through Radian Asset Assurance, its principal financial guaranty subsidiary that is a wholly owned subsidiary of Radian Guaranty. Its customers are mortgage originators, such as mortgage bankers, mortgage brokers, commercial banks, savings institutions, credit unions and community banks.