Market index and the market index ETF is different thing.
S&P 500 vs. Nasdaq 100 index, Is QQQ obviously better than the S&P 500?
Query the annualized return of the S&P 500 index between any two years, and the annual return of the S&P 500 index for that year
A table comparing S&P 500, Nasdaq, Dow Jones, Philadelphia Semiconductor Index over the years since its inception and annualized returns
In addition, investors who actively choose stocks should also “consider” adding ETFs of the US stock market to their portfolios, and should not reject ETF tracking broader marker — the reason is simple, it’s the only stock worth holding forever.
Top 10 ETFs and major US stock market indexes
Most investors should invest index ETFs tracking broader market