In an interview with Fool editor and analyst Brandon Byrnes, Wesley Gray, author of the book Quantitative Value, discusses the costs to investment performance in trying to guess the market's movement, and the virtues of sticking to a steady solid plan.
The Motley Fool's chief investment officer has selected his No. 1 stock for this year. Find out which stock it is in the brand-new free report, "The Motley Fool's Top Stock for 2013." Just click here to access the report and find out the name of this under-the-radar company.