Like Bill Gates inventing Window system, I have originated a set of digital system which can discover the fluctuation of global stock indices. The choice of the Friday closing price of Dow Jones index can predict the whole trend of one week and the single direction from Monday to Friday. It is almost accurate and correct. Believe it or not, trial can get tested and get proved. Every overseas account I have managed has been making continuous profits from five percent to ten percent at each month. The business model is that a private fund is to profit from the different price of forex trade and global stock index futures trade.