ARTICLE SYNOPSIS ...Technical analysis of industry groups by Richard K. Carlin, Ph.D. Stock market analysis is usually done in one of two ways: either on the market itself to predict whether stocks as a group are in an uptrend or downtrend, or on individual stocks to discover undervalued issues. No one, however, has consistently outperformed the market using these two approaches. Why? The one thing in common to both strategies is diversification of the investment portfolio. Since the market is nothing more than an average return on many stocks, it acts like a diversified portfolio. Thus, no matter which investm...