Stock ups and downs are controlled by market participants and stock controllers! Market participants decide the buying and selling of stocks, and stock controllers decide the ups and downs of stocks, both of which are indispensable. It is difficult for stocks to rise without controllers, and conversely, it is difficult for stocks to do well without market participants. Market participants are ordinary small and medium-sized retail investors and large shareholders; Stock controllers are all kinds of investment groups such as fund companies (including private equity funds) and brokers.