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 Message Thank you! Oops! Related Content Jane Bond: Decoding Diversification Agent Jane Bond is on the case, discovering how bonds diversify a portfolio. Global vs. International: What’s The Difference? International funds invest in non-U.S. markets, while global funds may invest in U.S. stocks alongside non-U.S. stocks. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.