Investment How Stocks Work Full Size Version 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. The Investment Risk No One’s Ever Heard Of You face a risk for which the market does not compensate you, that can not be easily reduced through diversification. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences.