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 Business Cycle How will you weather the ups and downs of the business cycle? Investing with Your Heart For some, the social impact of investing is just as important as the return, perhaps more important. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.