Omnicom Group (OMC) - Market capitalization

Market cap: NZ$38.61 Billion

As of December 2025 Omnicom Group has a market cap of NZ$38.61 Billion. This makes Omnicom Group the world's 1015th 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	NZ$38.61 B	28.2%
2024	NZ$30.12 B	11.24%
2023	NZ$27.07 B	3.35%
2022	NZ$26.19 B	14.9%
2021	NZ$22.80 B	22.7%
2020	NZ$18.58 B	-28.85%
2019	NZ$26.11 B	6.83%
2018	NZ$24.44 B	3.41%
2017	NZ$23.64 B	-18.43%
2016	NZ$28.98 B	9.38%
2015	NZ$26.49 B	8.63%
2014	NZ$24.39 B	4.63%
2013	NZ$23.31 B	46.52%
2012	NZ$15.91 B	0.97%
2011	NZ$15.75 B	-7.03%
2010	NZ$16.94 B	1.96%
2009	NZ$16.62 B	15.3%
2008	NZ$14.41 B	-27.53%
2007	NZ$19.89 B	-20.34%
2006	NZ$24.97 B	12.46%
2005	NZ$22.20 B	0.45%
2004	NZ$22.10 B	-13.59%
2003	NZ$25.58 B	10.2%
2002	NZ$23.21 B	-43.41%
2001	NZ$41.01 B	19.15%
2000	NZ$34.42 B	1.36%
1999	NZ$33.96 B	83.04%
1998	NZ$18.55 B	56.74%
1997	NZ$11.83 B	127.29%
1996	NZ$5.20 B

End of Day market cap according to different sources

On Dec 4th, 2025 the market cap of Omnicom Group was reported to be:

NZ$23.48 Billion

by Nasdaq

NZ$38.61 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Interpublic Group IPG	NZ$15.60 B	-59.59%	🇺🇸 USA
MDC Partners MDCA	NZ$0.73 B	-98.09%	🇺🇸 USA
Clear Channel Outdoor CCO	NZ$1.72 B	-95.53%	🇺🇸 USA
Lamar Advertising LAMR	NZ$23.27 B	-39.73%	🇺🇸 USA
Alliance Data ADS	NZ$4.91 B	-87.26%	🇺🇸 USA
eBay EBAY	NZ$65.08 B	68.56%	🇺🇸 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: NZ$38.61 Billion