In futures trading, it is often low opening and high going, or high opening and low going: it is related to the K line of the previous day, if the previous day is the positive line. It is easy to form a negative package that day, and the stock price will continue to rise before the Laiyang line. After the second day, it will bear great profit-taking pressure.

Selling continued to pour out, the buyer gave up resistance, and the takeover was scarce, which led to a continuous decline in the stock price. Finally, it closed at a price lower than the opening price of the previous positive line and swallowed the positive line of the previous day in one gulp, forming a high position. The closing price of the previous positive line is the lifeline of the bulls. As long as it falls below this price, shareholders should not hesitate to quit watching.

K line graph

With the transaction time as the abscissa and the price as the ordinate, the daily K-line is drawn continuously to form a K-line chart. The columns of the K-line chart can be divided into positive and negative lines. Generally, the red column represents the positive line and the green column represents the negative line. If the closing price in the period indicated by this column is higher than the opening price, that is, the stock price rises, the column is colored red, otherwise it is colored green. If the opening price is exactly equal to the closing price, a crosshair is formed.