MGIC Investment Corporation. The Group's principal activities are to provide private mortgage insurance to lenders throughout the United States. The Group operates through Mortgage Guaranty Insurance Corporation and other subsidiaries. The Group provides various services for the mortgage finance industry, such as contract underwriting and portfolio analysis and retention. The Group covers lenders to protect against loss from defaults on low down payment residential mortgage loans. The mortgage insurance coverage are provided to home mortgage lending industry in all 50 states of the United States, the District of Columbia and Puerto Rico.