Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. Share | Related Content 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. A Primer on Dividends A company's profits can be reinvested or paid out to the company’s shareholders as “dividends." What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.