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 Stay Safe with a B.O.P. At Your Back Learn about the advantages of Business Owner Policies with this highly educational and fun animated video. Mutual Funds vs. ETFs Exchange-traded funds have some things in common with mutual funds, but there are differences, too. How Will Working Affect Social Security Benefits? Knowing the rules may help you decide when to start benefits.