Equity Market Concentration - Market Capitalization of 10 Largest Companies as Share of S&P 500 Total

The S&P 500’s high concentration in the top 10 stocks, surpassing dotcom bubble levels, raises concerns about diversification and market stability, as underperformance in these stocks could lead to potential risks.

Image: BofA US Equity & Quant Strategy

Equity Market Concentration - Market Capitalization of 10 Largest Companies as Share of S&P 500 Total