Ken Heebner’s CGM Focus Fund was the best US stock fund of the past decade. It rose 18% a year, beating its nearest rival by more than three percentage points. Yet according to research by Morningstar, the typical investor in the fund lost 11% annually! How can that happen? It happened because investors tended to take [...] Useless Investing Variables: We Are Our Own Worst Enemy originally appeared in the Daily Reckoning . The Daily Reckoning, offers a uniquely refreshing, perspective on the global economy, investing, gold, stocks and today's markets. Its been called "the most entertaining read of the day." Check out our new special report Investing in Offshore Oil