MGIC Investment Corp. announced that Timothy A. Holt has joined the company's Board of Directors and will be part of the Audit Committee and Securities Investment Committee. Mr. Holt is currently a consultant. Until 2008, Mr. Holt served as an executive committee member and Senior Vice President and Chief Investment Officer of Aetna Inc. From 2004 through 2007, he also served as Chief Enterprise Risk Officer of Aetna.