Although the cross star is divided into yin and yang, its practical significance is not much different, far less important than the position of the cross star itself. For example, the low-priced area that appears at the end of the continuous decline is called the "star of hope" and is the signal of bottoming out; Appearing in the high-priced area after continuous rise, it is called "late star", which is the signal of peaking and turning. The cross star often indicates that the market has reached a turning point, and investors need to pay close attention to it, adjust trading strategies in time, and make emergency preparations.