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 The Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer. The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding. 5 Smart Investing Strategies Getting what you want out of your money may require the right game plan.