Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst? Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Should You Invest in Exchange Traded Funds? There are hundreds of ETFs available. Should you invest in them? All Muni Bonds Are Not Created Equal Gaining a better understanding of municipal bonds makes more sense than ever. 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals.