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 When Markets React When markets shift, experienced investors stick to their strategy. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss. What Is My Risk Tolerance? This questionnaire will help determine your tolerance for investment risk.