Omnicom Group (OMC) - Market capitalization

Market cap: A$30.40 Billion

As of May 2026 Omnicom Group has a market cap of A$30.40 Billion. This makes Omnicom Group the world's 1092th 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 2026

End of year Market Cap

Year	Marketcap	Change
2026	A$30.40 B	-19.8%
2025	A$37.91 B	38.83%
2024	A$27.31 B	8.67%
2023	A$25.13 B	2.82%
2022	A$24.44 B	13.78%
2021	A$21.48 B	23.2%
2020	A$17.43 B	-30.59%
2019	A$25.12 B	7.93%
2018	A$23.27 B	8.24%
2017	A$21.50 B	-22.78%
2016	A$27.85 B	11.88%
2015	A$24.89 B	6.6%
2014	A$23.35 B	8.73%
2013	A$21.47 B	70.52%
2012	A$12.59 B	5.01%
2011	A$11.99 B	-6.82%
2010	A$12.87 B	-4.22%
2009	A$13.44 B	13.34%
2008	A$11.85 B	-31.96%
2007	A$17.42 B	-21.91%
2006	A$22.31 B	7.59%
2005	A$20.74 B	1.76%
2004	A$20.38 B	-8.89%
2003	A$22.37 B	3.75%
2002	A$21.56 B	-35.39%
2001	A$33.37 B	22.32%
2000	A$27.28 B	1.02%
1999	A$27.01 B	69.13%
1998	A$15.96 B	51.46%
1997	A$10.54 B	127.64%
1996	A$4.63 B

End of Day market cap according to different sources

On Apr 30th, 2026 the market cap of Omnicom Group was reported to be:

A$30.30 Billion

by Nasdaq

A$33.02 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Alliance Data ADS	A$3.93 B	-87.06%	🇺🇸 USA
eBay EBAY	A$64.09 B	110.77%	🇺🇸 USA
The Interpublic Group of Companies IPG	A$12.48 B	-58.95%	🇺🇸 USA
MDC Partners MDCA	A$0.59 B	-98.06%	🇺🇸 USA
Lamar Advertising LAMR	A$19.74 B	-35.06%	🇺🇸 USA
Clear Channel Outdoor CCO	A$1.65 B	-94.54%	🇺🇸 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: A$30.40 Billion