In terms of technical form, the cross represents that the K line has no solid part or the solid part is very short, but the upper and lower shadow lines are very long, so it is a "ten" shape; Shrinkage refers to the decline in trading volume. Crossing and contraction together represent the stalemate between long and short sides, and the contraction crossing is usually a signal of change.

The contraction cross appears in different stages and has different meanings:

1, when it appears at the bottom, is called the morning star. At this time, the stock price has met with some support at the bottom, and the long and short sides have reached a state of balance, and the probability of turning their heads upwards in the future is greater.

2. When it appears at the top, it is called the evening star. At this time, the stock price meets some resistance at the top, and the long and short sides reach a state of balance, and the probability of turning into a decline in the future is greater.

3. The cross star on the way up indicates the relay of the rise. At this time, there are both profit-taking cash and the influx of off-exchange funds, and there is still room for future stock prices to rise.

The cross star on the way down indicates that there is still room for decline in the future.