Should You Invest in Exchange Traded Funds? There are hundreds of ETFs available. Should you invest in them? Share | Related Content 16 Wall Street Cliches in 60 Seconds Pundits say a lot of things about the markets. Let's see if you can keep up. Mutual Funds vs. ETFs Exchange-traded funds have some things in common with mutual funds, but there are differences, too. 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals.