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 | Related Content The Cycle of Investing Understanding the cycle of investing may help you avoid easy pitfalls. Earnings for All Seasons Earnings season can move markets. What is it and why is it important? Keys to Investing for Retirement There are some key concepts to understand when investing for retirement.