Market Cap

Omnicom Group Inc. Market Capitalization:

$25.81 Billion

USD as of Jan. 1, 2026

business Omnicom Group Inc. Company Profile

Omnicom Group Inc. Main Stock Listing

NYSE: OMC

Market Capitalization History of Omnicom Group Inc.

Market capitalizations are calculated from the opening stock price at the beginning of each month.

Top Competitors by Market Capitalization

Industry: Advertising Agencies
Company Market Cap (USD)
Publicis $25.82 B
The Interpublic Group of Companies, Inc. $9.38 B
BlueFocus Intelligent Communications Group Co. Ltd $7.07 B
Dentsu Group, Inc. $5.87 B
WPP plc $4.90 B
Sector: Communication Services
Company Market Cap (USD)
Alphabet $3.806 T
Meta $1.639 T
Tencent $711.14 B
Netflix $385.55 B
China Mobile $245.54 B

Yearly evolution of Omnicom Group Inc. market cap

Date Market Cap YoY Change
Jan. 1, 2026 $25.81 B 52.48%
Jan. 1, 2025 $16.92 B 0.49%
Jan. 1, 2024 $16.84 B -3.01%
Jan. 1, 2023 $17.37 B 14.09%
Jan. 1, 2022 $15.22 B 20.81%
Jan. 1, 2021 $12.60 B -17.17%
Jan. 1, 2020 $15.21 B -3.30%
Jan. 1, 2019 $15.73 B 1.60%
Jan. 1, 2018 $15.48 B -10.51%
Jan. 1, 2017 $17.30 B 16.77%
Jan. 1, 2016 $14.81 B 0.76%
Jan. 1, 2015 $14.70 B 0.30%
Jan. 1, 2014 $14.66 B 33.71%
Jan. 1, 2013 $10.96 B 19.01%
Jan. 1, 2012 $9.21 B 1.63%
Jan. 1, 2011 $9.06 B 27.14%
Jan. 1, 2010 $7.13 B 36.35%
Jan. 1, 2009 $5.23 B -42.94%
Jan. 1, 2008 $9.16 B -13.75%
Jan. 1, 2007 $10.62 B 28.62%
Jan. 1, 2006 $8.26 B -3.65%
Jan. 1, 2005 $8.57 B 3.02%
Jan. 1, 2004 $8.32 B 36.65%
Jan. 1, 2003 $6.09 B -30.98%
Jan. 1, 2002 $8.82 B -4.30%
Jan. 1, 2001 $9.22 B

Market capitalization is calculated from the opening stock price at the beginning of each year.

Omnicom Group Inc. Categories

United States languages Communication Services languages Advertising Agencies
United States Communication Services United States Advertising Agencies

Stocks & Indices

Omnicom Group Inc. has the following listings and related stock indices.


Stock: NYSE: OMC

Stock: Bovespa: O1MC34

Stock: XETR: OCN

What is a company's market capitalization?

The market capitalization of a company, more simply referred to as "market cap", is the total market value of a publicly traded company's outstanding shares. It is often considered as a key indicator of what a company is worth.