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 | Related Content Should I Invest in Gold? Learning more about gold and its history may help you decide whether it has a place in your portfolio. Best Performing Asset Classes Bonds may outperform stocks one year only to have stocks rebound the next. Keys to Investing for Retirement There are some key concepts to understand when investing for retirement.