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? Name Email Address Question Thank you! Oops! Related Contents The Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer. Mutual Funds vs. ETFs Exchange-traded funds have some things in common with mutual funds, but there are differences, too. How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset.