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 Message Thank you! Oops! Related Content The Real Cost of a Vacation Home What if instead of buying that vacation home, you invested the money? Mutual Funds vs. ETFs Exchange-traded funds have some things in common with mutual funds, but there are differences, too. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences.