To gain an edge, this is what you need to know today.Remember 1996 Stock MarketPlease click here for an enlarged chart of Micron Technology Inc MU.Note the following:This article is about the big picture, not an individual stock.  The chart of MU stock is being used to illustrate the point.The chart shows yesterday's price action in MU stock was on higher volume.Yesterday, we shared with you MU stock was overbought and overbought stocks are susceptible to a pullback.The chart shows MU stock is down after re ...