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 Content When Markets React When markets shift, experienced investors stick to their strategy. Why Regular Rebalancing Makes Sense Without your knowing, your investment portfolio could be off-kilter. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.