Ares Management Set to Join S&P 500 Following Kellanova's $36 Billion Acquisition by Mars

Ares Management Set to Join S&P 500 Following Kellanova's $36 Billion Acquisition by Mars

By USFM•December 9, 2025

Ares Management will officially enter the S&P 500 index on December 11, 2023, replacing Kellanova, which is set to be acquired by Mars in a significant $36 billion deal. This move underscores Ares' growing stature in the alternative asset management sector, alongside industry giants such as Blackstone, KKR, and Apollo Global Management.

Ares Management Corporation (NYSE: ARES) is poised to join the prestigious S&P 500 index on December 11, 2023, just before the market opens. This inclusion follows the announcement of Kellanova's $36 billion acquisition by Mars, Inc., which will see Kellanova being replaced in the index. The addition of Ares, which has been a significant player in the alternative asset management space since its founding in 1997, solidifies its standing alongside other industry titans like Blackstone, KKR, and Apollo Global Management.

As of the latest trading session, Ares shares experienced a notable uptick, rising approximately 9% in pre-market trading, although the stock remains down about 7% year-to-date. Ares Management oversees more than $596 billion in assets, encompassing various sectors including real estate, private equity, infrastructure, and private credit. This strategic move to join the S&P 500 is expected to enhance the firm’s visibility and credibility in the financial markets, potentially attracting new investors and increasing liquidity.

The rationale for this transaction is multifaceted. By joining the S&P 500, Ares Management aims to leverage the benefits of being part of a benchmark that is closely monitored by institutional investors, thereby enhancing its appeal to a broader investor base. This could also lead to increased stock demand and improved stock performance, benefiting existing shareholders.

Looking ahead, the market will observe the transition closely, especially with the anticipated closing of the Kellanova-Mars deal, which will pave the way for Ares’ entry into the index. The change comes with expectations of regulatory considerations, although the primary focus remains on the completion of the acquisition deal involving Kellanova and Mars.

Overall, Ares Management's joining of the S&P 500 is a significant milestone that not only reflects its growth trajectory but also marks a pivotal moment for the private investment sector, which has seen increased recognition in mainstream financial indices. This development is likely to have a ripple effect on shareholders, employees, and the broader market by reinforcing confidence in alternative asset management as a viable investment strategy.