The S&P 500’s performance defied many expectations last year and highlighted the significant shifts taking place in the U.S. equity market. As the index broke through the 6,000 barrier towards the back end of 2024, it has grown beyond reliance on the “Magnificent 7” mega-cap tech stocks, pointing to broader sectoral gains and diversified participation.
For much of the past decade, mega-cap tech firms such as Nvidia have heavily influenced S&P 500 returns, comprising nearly 30% of the index. However, last year the Bloomberg Magnificent 7 Index trailed the equal-weight version of the S&P 500 for the first time since 2022. This indicates that the rally is increasingly driven by the broader economy, presenting opportunities for investors to diversify beyond concentrated tech exposure.
Amid this rally, the S&P 500 Equal Weight Index is gaining traction. Unlike the market-cap-weighted index, Equal Weight assigns uniform significance to all constituents, offering an alternative for investors seeking to mitigate concentration risks. 2024 witnessed a steady rise in open interest (OI) for S&P 500 Equal Weight futures, reflecting investor preference for broader market representation. OI grew to more than 17,930 contracts, with a single-day OI record of 23,600 contracts (3.5 billion in notional) on December 13. This shift is mirrored in a broader trend. According to Nasdaq, sector rotation strategies are gaining appeal due to wider market concerns about tech sector overvaluation and regulatory scrutiny. This underscores the appeal of instruments that reflect the entirety of the U.S. stock market, and not just those with mammoth market capitalisation.
Also last year, the adoption of S&P 500 Equal Weight futures contributed to record trading activity across our equity index suite. Average daily volume (ADV) and OI in these contracts continued to set records, reflecting their growing utility for both institutional and retail participants. For example, U.S. equity index options achieved record ADV of 1.7 million contracts in Q1 2024, and the momentum persisted throughout 2024. This trend signals a growing awareness of the risks associated with concentrated portfolios. The “Magnificent 7” stocks, while still key players, no longer dictate market movements. Instead, investors are leveraging instruments like Equal Weight futures and sector contracts to balance risk and capitalise on broad-based growth.
At the end of last year, the S&P 500 was still trading above 6,000, reflecting a gain of over 23% throughout 2024. The role of equity index futures and options will remain pivotal for market participants managing U.S. equity exposure as we move into 2025. With the S&P 500 Equal Weight Index gaining prominence and sectoral rotation continuing to redefine market dynamics, listed equities futures markets stand ready to support market participants in adapting to these transformative trends.
Paul Woolman, Global Head of Equity Products, CME Group
