First of all, whether sequential trading can ensure that this trend has been upward. If you confirm decisively, then at this time we will talk about breakthrough buying and callback buying.

Breakthroughs can also lead to false breakthroughs. This situation also exists at the time of breakthrough, that is, when the stock price reaches its peak. Especially for some people. The dealer has a large part of the chips, so it is easier to trade. It is easy to have a false breakthrough.

If you call back to buy, you usually call back to a support level when the listing trend is upward. It's safer to think like this, because if there are moving averages and quantitative energy ahead and the trend is supported, then the shrinking callback is a process of washing dishes, and it is likely to rise again.