Top 10 Stocks Command 39% of S&P 500 Market Cap in 2024

In 2024, the top 10 stocks—Apple, Microsoft, Nvidia, Amazon, Alphabet, Meta, Tesla, Broadcom, Berkshire Hathaway, and Eli Lilly—expanded their combined share of the S&P 500 market capitalization from 33% in January to 39% by December. This remarkable growth underscores the increasing market concentration and the dominant role these companies play in shaping the U.S. equity market.