If you encounter a major positive news and do not ship on the same day, remember to sell at a high opening the next day. The realization of positive news is often negative news.

When encountering major holidays, reduce positions or even go short a week in advance. According to past experience, holidays will inevitably fall.

The medium- and long-term strategy is to keep enough cash in hand, pull up and ship, sell at a loss and buy back, and rolling operation is the best strategy.

If the decline tends to be slow, the rebound will also be very slow; if the decline accelerates, the rebound will also be very fast.

If you buy wrong, you must admit it, stop loss in time, and keep the principal.

When doing short-term 15-minute K-line chart, you must look at it. According to the KDJ indicator, you can find a better buying and selling point.