📈 U.S. Stock Market Concentration Recedes in 2025 After Hitting Record High

The top 10 U.S. stocks—Apple, Microsoft, Nvidia, Amazon, Alphabet, Meta, Tesla, Broadcom, Berkshire Hathaway, and Eli Lilly—saw their combined S&P 500 market cap share rise from 33.0% in 2023 to 39.1% in 2024. Their dominance peaked at 39.7% on January 6, 2025, but declined to 35.7% by April 23, 2025, signaling a reduction in market concentration.