MILWAUKEE, Aug. 7, 2025 /PRNewswire/ -- MGIC Investment Corporation (NYSE: MTG) announced today that Moody's Ratings ("Moody's") upgraded its senior unsecured debt rating to Baa2 from Baa3. Moody's also upgraded the insurance financial strength rating of MTG's principal operating subsidiary, Mortgage Guaranty Insurance Corporation ("MGIC"), to A2 from A3. The outlook for the ratings is stable.Moody's rationale for the upgrade included MTG's consistent performance, good net capital generation, and robust pro ...