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 Content Saving for College This calculator can help you estimate how much you should be saving for college. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock. Estimate Your RMD Help determine the required minimum distribution from an IRA or other qualified retirement plan.