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 The Real Cost of a Vacation Home What if instead of buying that vacation home, you invested the money? 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. 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals.