Whether to invest in the S&P 500 through an index fund or an ETF depends on your personal preference and investment goals.
Index funds are typically mutual funds that track an index like the S&P 500 and are priced at the end of the trading day. They are a good option for long-term investors who want a hands-off approach to investing.
Conversely, ETFs trade like stocks throughout the day and may have lower expense ratios than mutual funds. They are a good option for investors who want the flexibility to buy and sell throughout the day.