📈 Top 10 Stocks in the S&P 500: Doubling Their Market Share

In September 2024, the top 10 stocks in the S&P 500 accounted for 37% of the index's total market capitalization, doubling their share compared to the 2010–2014 period. From 2018 to September 2024, these top 10 stocks contributed approximately 50% of the overall market cap growth in the S&P 500. This trend underscores the increasing concentration of market value among a small group of dominant companies. Furthermore, between 2014 and June 2024, the market capitalization of the top 10 stocks grew 2.7 times faster than that of the remaining stocks in the S&P 500, highlighting the growing influence of these leading firms in the U.S. stock market.