Exhibit 99 Investor Relations: Dianna Higgins | (414) 347-2635 | dianna_higgins@mgic.com MGIC Investment Corporation Reports Third Quarter 2025 Results Third Quarter 2025 Net Income of $191.1 million or$0.83 per Diluted Share Third Quarter 2025 Adjusted Net Operating Income (Non-GAAP) of $190.8 million or$0.83 per Diluted Share MILWAUKEE (October 29, 2025) - MGIC Investment Corporation (NYSE: MTG) today reported operating and financial results for the third quarter of 2025. Tim Mattke, CEO of MTG and Mort ...