Many years ago, I was taught to believe that value investing, using fundamental analysis, is the best long-term approach when making investment decisions. I was taught to buy stocks at bargain prices and wait patiently until they become overpriced. In the years since, I learned some growth and momentum techniques as well. I never argue whether one approach is better than another. But I do believe in using more than one methodology when choosing stocks to diversify my portfolio; broad diversification reduces risk significantly. Thus my portfolio contains a mixture of growth stocks and value stocks. In previous Cabot...