<human>: What's the difference between an ETF and a mutual fund?
<bot>: The main difference between an ETF and a mutual fund is that an ETF trades on a stock exchange, while a mutual fund does not. ETFs are typically more liquid than mutual funds, meaning they can be bought or sold at any time during the day, whereas mutual funds may have restrictions on when they can be traded. Additionally, ETFs tend to have lower minimum investment requirements than mutual funds.