Omnicom Group Inc (NYSE:OMC) — Market Cap & Net Worth

$21.91 Billion USD  · Rank #1189

Market Cap & Net Worth: Omnicom Group Inc (OMC)

Omnicom Group Inc (NYSE:OMC) has a market capitalization of $21.91 Billion ($21.91 Billion) as of September 17, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #1189 globally and #494 in its home market, demonstrating a -3.35% decrease in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying Omnicom Group Inc's stock price $79.85 by its total outstanding shares 274345967 (274.35 Million). Also see OMC total assets for a full breakdown of the balance sheet.

Omnicom Group Inc Market Cap History: 2015 to 2026

Omnicom Group Inc's market capitalization history from 2015 to 2026. Data shows growth from $15.46 Billion to $21.91 Billion (3.75% CAGR). Also see Omnicom Group Inc operating cash flow efficiency for how efficiently the company converts equity into cash flow.

Index Memberships

Omnicom Group Inc is a constituent of 1 market index:

Index Total Market Cap Weight (%) Rank by Market Cap
S&P 500 Index
GSPC
$62.85 Trillion 0.03% #353 of 503

Weight: Omnicom Group Inc's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

Omnicom Group Inc Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how Omnicom Group Inc's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance. Check latest Omnicom Group Inc stock price today for real-time trading data and today's change.

Latest Price to Sales (P/S) Ratio

1.28x

Omnicom Group Inc's market cap is 1.28 times its annual revenue

Industry average: 0.37x Higher than industry average

Latest Price to Earnings (P/E) Ratio

N/A

P/E ratio not applicable due to negative or zero earnings

What These Ratios Tell Investors:

  • Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
  • Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
  • Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
  • Industry comparison provides context for whether the company is valued higher or lower than peers.
Year Market Cap (USD) Revenue (USD) Net Income (USD) P/S Ratio P/E Ratio
2016 $17.84 Billion $15.42 Billion $1.15 Billion 1.16x 15.54x
2017 $15.72 Billion $15.27 Billion $1.09 Billion 1.03x 14.44x
2018 $16.33 Billion $15.29 Billion $1.33 Billion 1.07x 12.31x
2019 $18.68 Billion $14.95 Billion $1.34 Billion 1.25x 13.95x
2020 $15.02 Billion $13.17 Billion $951.20 Million 1.14x 15.79x
2021 $18.31 Billion $14.29 Billion $1.40 Billion 1.28x 13.12x
2022 $21.19 Billion $14.29 Billion $1.30 Billion 1.48x 16.31x
2023 $23.22 Billion $14.69 Billion $1.39 Billion 1.58x 16.69x
2024 $23.60 Billion $15.69 Billion $1.48 Billion 1.50x 15.94x
2025 $22.15 Billion $17.27 Billion -$54.50 Million 1.28x N/A

Competitor Companies of OMC by Market Capitalization

Companies near Omnicom Group Inc in the global market cap rankings as of September 17, 2026. Review Omnicom Group Inc (OMC) tangible net worth to assess the quality of the company's equity after excluding intangible assets.

Key companies related to Omnicom Group Inc by market ranking:

  • Applovin Corp (NASDAQ:APP): Ranked #250 globally with a market cap of $101.34 Billion USD.
  • Publicis Groupe SA (PA:PUB): Ranked #1268 globally with a market cap of $20.20 Billion USD ( €17.28 Billion EUR).
  • Focus Media Information Technology Co Ltd (SHE:002027): Ranked #2251 globally with a market cap of $9.91 Billion USD ( CN¥67.73 Billion CNY).
  • Interpublic Group of Companies Inc (NYSE:IPG): Ranked #2432 globally with a market cap of $8.93 Billion USD.
Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#250 Applovin Corp NASDAQ:APP $101.34 Billion $331.46
#1268 Publicis Groupe SA PA:PUB $20.20 Billion €98.80
#2251 Focus Media Information Technology Co Ltd SHE:002027 $9.91 Billion CN¥4.69
#2432 Interpublic Group of Companies Inc NYSE:IPG $8.93 Billion $24.57

Omnicom Group Inc Historical Marketcap From 2015 to 2026

Between 2015 and today, Omnicom Group Inc's market cap moved from $15.46 Billion to $ 21.91 Billion, with a yearly change of 3.75%.

Year Market Cap Change (%)
2026 $21.91 Billion -1.11%
2025 $22.15 Billion -6.15%
2024 $23.60 Billion +1.67%
2023 $23.22 Billion +9.57%
2022 $21.19 Billion +15.72%
2021 $18.31 Billion +21.88%
2020 $15.02 Billion -19.58%
2019 $18.68 Billion +14.37%
2018 $16.33 Billion +3.94%
2017 $15.72 Billion -11.93%
2016 $17.84 Billion +15.42%
2015 $15.46 Billion --

End of Day Market Cap According to Different Sources

On Sep 16th, 2026 the market cap of Omnicom Group Inc was reported to be:

Source Market Cap
Yahoo Finance $21.91 Billion USD
MoneyControl $21.91 Billion USD
MarketWatch $21.91 Billion USD
marketcap.company $21.91 Billion USD
Reuters $21.91 Billion USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About Omnicom Group Inc

NYSE:OMC USA Advertising Agencies
Market Cap
$21.91 Billion
Market Cap Rank
#1189 Global
#494 in USA
Share Price
$79.85
Change (1 day)
-1.50%
52-Week Range
$67.27 - $88.94
All Time High
$105.49
About

Omnicom Group Inc., together with its subsidiaries, offers advertising, marketing, and corporate communications services. It provides a range of services in the areas of media and advertising, precision marketing, public relations, healthcare, branding and retail commerce, experiential, execution, and support. The company's services include advertising, branding, content marketing, crisis communi… Read more