12 Best S&P 500 Stocks With Huge Upside Potential

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5. Omnicom Group Inc. (NYSE:OMC)

Number of Hedge Fund Holders: 44

Average Upside Potential as of June 24: 37.9%

Omnicom Group Inc. (NYSE:OMC) is one of the best S&P 500 stocks with huge upside potential. On June 24, Omnicom Media Group/OMG, which is the media services division of Omnicom Group, concluded the 2025 Cannes Lions International Festival of Creativity as the most awarded media holding company. The group garnered 83 Lions, which included 15 golds and two prestigious Grand Prixes.

Beyond the awards, OMG made daily headlines at the festival by announcing 8 first-mover partnerships with leading networks, platforms, and retailers for Omnicom clients to use live content, conversations, and commerce for brand growth. The partnerships include programmatic bidding on high-attention moments during live sports on Disney & Sky Sports, and accessing Walmart audiences to connect influencers with customer purchases on Walmart’s commerce & livestream platforms.

OMG comprises full-service media agencies OMD, PHD, and Hearts & Science. Powered by the Omni marketing orchestration system, OMG aims to deliver transformative experiences for consumers, clients, and talent. The group employs over 26,000 people globally and serves leading brands worldwide.

Omnicom Group Inc. (NYSE:OMC) offers advertising, marketing, and corporate communications services.

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