With hundreds of billions in the fund, it’s among the most popular ETFs. The fund is sponsored by State Street Global Advisors — another heavyweight in the industry — and it tracks the S&P 500.

Expense ratio: 0.095% (every $10,000 invested costs $9.50 annually)

5-year annualized return: 13.6%

Who is it good for? Great for investors looking for a broadly diversified index fund at a low cost to serve as a core holding in their portfolio.