K-line, also known as Yin-Yang candle, is a columnar line composed of shadow lines and entities. The hatched part above the entity is called the upper hatched line and the lower hatched line. Entities are divided into positive and negative lines. Among them, the shadow line represents the highest and lowest price of the day's transaction, and the entity represents the opening price and closing price of the day.

1, the daily K-line is drawn according to the four price points formed in the daily trend of stock price (index), namely, opening price, closing price, highest price and lowest price. When the closing price is higher than the opening price, the opening price is lower than the closing price, and the rectangular column between them is drawn in red or hollow, which is called the positive line; The highest point of the upper shadow line is the highest price, and the lowest point of the lower shadow line is the lowest price. When the closing price is lower than the opening price, the opening price is lower than the upper closing price. The rectangular column between them is drawn with black or solid lines, which is called negative line. The highest point of the upper shadow line is the highest price, and the lowest point of the lower shadow line is the lowest price.

2. According to the calculation cycle of K-line, it can be divided into daily K-line, weekly K-line, monthly K-line and annual K-line. Weekly K-line refers to the K-line chart drawn with the opening price on Monday, the closing price on Friday, the highest price and the lowest price in the whole week. The monthly K-line is based on the opening price of the first trading day of a month, the closing price of the last trading day and the highest and lowest prices of the whole month. The definition of annual K-line can also be derived. Weekly K-line and monthly K-line are often used to judge the mid-term market. For short-term operators, the 5-minute K-line, 15-minute K-line, 30-minute K-line and 60-minute K-line provided by many analysis software also have important reference value.

The significance of K-line chart:

The fluctuation range of extreme negative line and extreme positive line is left 0.5%;

The fluctuation range of xiaoyin line and xiaoyang line is generally 0.6-1.5%;

The fluctuation range of Yinzhong Line and Zhongyang Line is generally1.6-3.5%;

The fluctuation range of Yin Da Line and Dayang Line is above 3.6%.

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