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 Question Thank you! Oops! Related Contents Should You Invest in Exchange Traded Funds? There are hundreds of ETFs available. Should you invest in them? The Utility of Sector Investing Successful sector investing is dependent upon an accurate analysis about when to rotate in and out. 5 Smart Investing Strategies Getting what you want out of your money may require the right game plan.