As of March 2026 Omnicom Group has a market cap of โน2.435 Trillion. This makes Omnicom Group the world's 899th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Mar 8th, 2026 the market cap of Omnicom Group was reported to be: