Graph theory and stochastic trend faction emphasized the historical trend of the cycle of the opposite opinion. This theory stresses, market buyers and sellers in the information disclosed under the same savvy, price each transaction accurately reflect the real price of the stock, and the stock price movement is random. Now without a trace, the share price will not have to change the system, even if to throw darts stock selection method, the resulting rate of return than the overall market also have the opportunity to better performance.