The U.S. stock market concentration shows the top 1, 3, and 10
companies' market cap relative to the total reached 27% in 2023,
nearing the 1963 peak of 30%. The lowest was 12% in 1993, with 14%
as recent as 2014
Source FactSet
Now in June 2024 the Top 3 are over 20 percent and the Top 10
are 36% by weight
The U.S. stock market concentration
Posted by steve on 16th of Jun 2024 at 01:28 pm
The U.S. stock market concentration shows the top 1, 3, and 10 companies' market cap relative to the total reached 27% in 2023, nearing the 1963 peak of 30%. The lowest was 12% in 1993, with 14% as recent as 2014
Source FactSet
Now in June 2024 the Top 3 are over 20 percent and the Top 10 are 36% by weight
SP 500 By Weight