... plummeting the stock into a downward slope.When choosing a stock for a short sell, look for steep rises. This indicatesthat the sharper the incline, the sharper the drop. Also, the less support a stock has, ... the large price moves.• Stock Knowledge – Core trading requires significantunderstanding of the stock s nature such as the products andservices that the stock s business is involved. Necessaryfundamental ... profits, losses and costs.• Dominant Trends – On a daily basis check the major marketindexes such as the S& amp; P 500, the NASDAQ composite, and the Dow Jones industrials. Specific stocks can either...