Market volatility is one of your best tools for profit-if you know how to use it SeekingAlpha.com columnist Brian Nichols explains how to identify a value stock, when to buy it, how long to hold it, when to sell it-and how to execute these skills in order to maximize profits. He discusses the fundamentals of a stock and explains the ways market psychology works-how it controls the short-term direction of a stock and, ultimately, offers value-describes the ins and outs of purchasing undervalued stocks when fear and panic dominate the market. Brian Nicholsis a columnist for Seeking Alpha, the largest stock market web site.