Enter the fundamental metric information such as P/E on any 100 stocks into a scoring system. If the top 25% of the stocks perform a lot better than the rest in 6 months consistently, then it is a good scoring system.I have been using my own scoring system for years. It sums up the individual scores for selected fundamental metrics. When the total passes a certain number, evaluate the stock further for potential purchase. This scoring system has been updated many times for refinements and adapting to the changing market conditions. All metric information can be obtained from web sites.Many companies and academic projects must have worked on this kind of stock scoring systems. However, few if any can prove their systems work consistently.I may have found the reason why it does not work consistently. The fundamental metrics change from different market conditions. To illustrate, the current market conditions may favor value while some other conditions favor growth. I monitor the performances of all the fundamental metrics periodically and make changes accordingly.Size: 205 pages (6*9) Last Update: 10/2018