The 5 Best S&P 500 Index Funds Vanguard S&P 500 ETF. Founded in 2010, Vanguard S&P 500 ETF (VOO) has had an average annual return of 16.08% since, compared with 16.12% for the S&P 500. ... iShares Core S&P 500 ETF. ... Schwab S&P 500 Index Fund. ... Fidelity Spartan 500 Index Investors Shares. ... Vanguard 500 Index Fund Investors Share. 7 Oct 2022