MGIC Investment Corporation is a publicly traded company that provides private mortgage insurance in the United States. The company was founded in 1957 and is headquartered in Milwaukee, Wisconsin. MGIC Investment Corporation operates through its subsidiaries, Mortgage Guaranty Insurance Corporation and MGIC Indemnity Corporation. The company's primary business is providing mortgage insurance to homebuyers who make down payments of less than 20% of the home's value. MGIC Investment Corporation is listed on the New York Stock Exchange under the ticker symbol MTG.