How does the fund view the next day's decline and rise? Why do many people know whether it will go up or down tomorrow?

Like stocks, funds have charts, and the ups and downs are shown in red and green. The downward curve is downward and the upward curve is upward. Just like waves and saws, everyone involved can be sawed. For many people, you can know tomorrow's ups and downs. Just like fortune tellers, stocks have their own rules. The rise and fall of funds and stocks are determined by many factors. The more factors that affect the rise and fall of fund stocks, the easier it is to predict the future trend of funds and stocks. For example, some unexpected events in the world, such as the big strategic investment of enterprises, will cause ups and downs, so we should cultivate the habit of seeing more, listening more and thinking more, establish various information collection teams, and get the information we want to know through comprehensive judgment! This needs to be constantly summed up and tried, and it also needs to study hard!