What is the best S&P 500 ETF to buy?

If you're looking to invest in the S&P 500 index, choosing the best ETF can be a crucial decision. There are many factors to consider, such as expense ratios, trading volumes, and tracking errors. With so many options available, how do you determine which S&P 500 ETF is the best fit for your investment portfolio? For instance, the Vanguard S&P 500 ETF (VOO) is a popular choice among investors due to its low expense ratio and strong track record of performance. Alternatively, the SPDR S&P 500 ETF Trust (SPY) is another widely held ETF that offers similar exposure to the S&P 500 index. However, there are other options as well, such as the iShares CORE S&P 500 ETF (IVV) and the Fidelity ZERO Large Cap Index ETF (FNIL). So, what is the best S&P 500 ETF to buy? It ultimately depends on your individual investment goals, risk tolerance, and investment time horizon. Consider researching each ETF's performance, expenses, and risk factors to make an informed decision.