With significant upside potential, The Interpublic Group of Companies, Inc. (NYSE:IPG) secures a spot on our list of the 11 Best Retirement Stocks to Buy According to Analysts. Omnicom Group Inc. Provides Investors with More Time to Swap The Interpublic Group of Companies, Inc. (IPG) Notes Image by coombesy from Pixabay On September 9, 2025, Omnicom Group Inc. announced that it will provide investors with more time to swap The Interpublic Group of Companies, Inc. (NYSE:IPG) notes. Accordingly, Omnicom m ...