Strong Growth and Margin Expansion Amid Temporary Post-IPG Noise; Omnicom Is Attractive

Omnicom, after its November 2025 acquisition of Interpublic Group, is the largest traditional advertising holding company, ahead of Publicis. Omnicom provides creative, media planning and buying, and reputation management services to brand owners. The transition from traditional media advertising, such as newspapers and linear television, to digital advertising, including social media, has created an opportunity for agencies to differentiate with scale and data.