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 Bridging the Confidence Gap In the world of finance, the effects of the "confidence gap" can be especially apparent. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss. 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals.