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 It Was the Best of Times, It Was the Worst of Times All about how missing the best market days (or the worst!) might affect your portfolio. Required Reading: The Economic Report of the President The Economic Report of the President can help identify the forces driving — or dragging — the economy. 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals.