Omnicom Group (OMC) - Market capitalization

Market cap: €20.01 Billion

As of December 2025 Omnicom Group has a market cap of €20.01 Billion. This makes Omnicom Group the world's 983th 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.

Market cap history of Omnicom Group from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	€20.01 B	22.62%
2024	€16.32 B	5.39%
2023	€15.48 B	-0.11%
2022	€15.50 B	12.76%
2021	€13.75 B	26.16%
2020	€10.90 B	-30.58%
2019	€15.70 B	9.54%
2018	€14.33 B	2.44%
2017	€13.99 B	-26.68%
2016	€19.08 B	15.07%
2015	€16.58 B	5.55%
2014	€15.71 B	13.28%
2013	€13.87 B	40.19%
2012	€9.89 B	4.49%
2011	€9.47 B	-3.67%
2010	€9.83 B	16.65%
2009	€8.42 B	40.81%
2008	€5.98 B	-42.65%
2007	€10.43 B	-21.73%
2006	€13.33 B	4.07%
2005	€12.81 B	10.18%
2004	€11.62 B	-11.96%
2003	€13.20 B	13.65%
2002	€11.62 B	-39.74%
2001	€19.28 B	19.1%
2000	€16.19 B	-8.19%
1999	€17.63 B	114.05%
1998	€8.24 B	42.34%
1997	€5.78 B	86.69%
1996	€3.10 B

End of Day market cap according to different sources

On Dec 5th, 2025 the market cap of Omnicom Group was reported to be:

€12.17 Billion

by Nasdaq

€20.01 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Interpublic Group IPG	€7.72 B	-61.39%	🇺🇸 USA
MDC Partners MDCA	€0.36 B	-98.17%	🇺🇸 USA
Clear Channel Outdoor CCO	€0.84 B	-95.75%	🇺🇸 USA
Lamar Advertising LAMR	€11.55 B	-42.26%	🇺🇸 USA
Alliance Data ADS	€2.43 B	-87.83%	🇺🇸 USA
eBay EBAY	€32.37 B	61.72%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Omnicom Group (OMC)

Market cap: €20.01 Billion