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 Global and International Funds Investors seeking world investments can choose between global and international funds. What's the difference? Your Shifting Risk Tolerance Time and market performance may subtly and slowly imbalance your portfolio. 5 Smart Investing Strategies Getting what you want out of your money may require the right game plan.