ETFs – or exchange-traded funds – have exploded in popularity in recent years. They’re easy to invest in, give you instant diversification, and can be highly focused.
Diversification is smart. It’s very important to not put too much of your money in any one stock. At the same time, you don’t want to put your money in bad stocks – and that’s what can happen with an ETF. You are forced to buy every single stock in that ETF. And at that point, it becomes over-diversification. You’re stuck owning all of the laggards that will inevitably weigh on your returns.