Some big guys are very good at trading and can guide the market in an orderly manner. They think that the volume of their orders is large enough to affect the market price. For example, when they want to speculate on the long position, the price will be pulled up.
When the big guys are halfway through the trading, they will professionally say that they need to wait for a while at this position, deliberately sell a little to let the price fall, and wait for the right time to continue to pull the market vigorously.
Later, when the big guys encounter the short side starting to suppress the price, they will professionally believe that the short side's suppression will cause the market to fall sharply. But just when the big guys judged that it would continue to fall, the price rebounded. At this time, some people said that the short side was pulling the market, and the big guys would firmly say that the price rebound was driven by the multi-party forces and had nothing to do with the short side.
In this way, the market trend is sometimes not completely as expected, even if the big guys are trading, there are inevitably times of misjudgment. Therefore, although some traders are very professional, the market is still full of uncertainty.