The conversation between human and AI assistant.
Why do investors invest in index funds like Fidelity Spartan 500 Index (FUSEX) where the expense ratio is 0.10% and not in Vanguard S&P500 ETF (VOO) whose expense ratio is lower (0.05%) despite having the same return?
I see. What about the performance of the two funds?
Both funds track the S&P 500 index, so they should perform similarly. However, fees can eat into your returns over time, so it's worth considering the expense ratios when making investment decisions.