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? Four Really Good Reasons to Invest There are four very good reasons to start investing. Do you know what they are? What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.