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 Investments You’ve made investments your whole life. Work with us to help make the most of them. Rebalancing Your Portfolio Over time, different investments' performances can shift a portfolio’s intent and risk profile. Rebalancing may be critical. 5 Smart Investing Strategies Getting what you want out of your money may require the right game plan.