You Would Rather Be... Full Size Version Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. Best-Performing Asset Classes Bonds may outperform stocks one year only to have stocks rebound the next. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences.