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. Share | Have A Question About This Topic? Address Thank you! Oops! Related Contents Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst? Estimating the Cost of College This worksheet can help you estimate the costs of a four-year college program. How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset.