Events on Wall Street Can successful investors predict changes in the markets? Some can but others miss the market’s signals. 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. Earnings for All Seasons Earnings season can move markets. What is it and why is it important? Saving for College This calculator can help you estimate how much you should be saving for college.