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 The Good Ship IPO The seas of the market are constantly shifting. Whether the good ship IPO can set sail may depend heavily on the tides. You Would Rather Be... Are you a thrill seeker, or content to relax in the backyard? Use this flowchart to find out more about your risk tolerance. What Is the Dividend Yield? This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.