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. Share | Related Content Jane Bond: Scaling the Ladder Agent Jane Bond is on the case, uncovering the mystery of bond laddering. Asset Allocation Consider how your assets are allocated and if that allocation is consistent with your time frame and risk tolerance. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.