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? A Decision Not Made Is Still a Decision Investors who put off important investment decisions may face potential consequence to their future financial security. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences.