Generally speaking, there are two situations. One is that in the process of rising, the banker should clean the chips that follow the trend and sell the stocks at a certain price, which will create the illusion of falling and lure retail investors and followers to sell; The other happens when the stock dealer has finished the purpose of making a fortune and the stock price is quite high, and the dealer has achieved the purpose of fleeing by throwing stocks into the market.

For example, a stock has been falling for a long time and seems to have bottomed out, but the bookmakers use their own stocks to suppress it desperately by taking advantage of external reasons such as the market crash and economic recession. Due to the long-term decline of the stock, ordinary retail investors repeatedly bought sets, which frightened them and almost no one dared to buy any more. Retail investors who hold the stock will mistakenly think that the stock has started a new round of decline and cut their meat to escape. At this time, it was just the dealer's move, and the dealer quietly sucked while smashing the plate.