The yellow line, white line and purple line in the stock K-line chart represent the days of the moving average respectively. If it is in the upper left corner of the K-line chart, it indicates the average days represented by each color line. K-line chart is also called Yin-Yang chart.

The colors of lines used by different softwares have different meanings. Generally, white is the 3-day moving average, yellow is the 5-day moving average, and purple is the 1-day moving average.

The drawing method of K-line chart in stock market and futures market contains four data, namely, opening price, highest price, lowest price and closing price. All K-lines are developed around these four data, reflecting the general situation and price information. If you put the daily K-line chart on a piece of paper, you can get the daily K-line chart, and you can also draw the weekly K-line chart and the monthly K-line chart.

Extended information:

Negative line: the K line whose opening price is higher than the closing price in the securities market. K-line chart is generally marked with light blue, indicating that the stock has fallen. When the closing price is lower than the opening price, that is, when the stock price trend shows a downward trend, the K line in this case is called the negative line.

positive line: in the securities market, it refers to the K line whose closing price is higher than the opening price. The K-line chart is marked with a red line to indicate the uptrend. The top thin line of the K-line is called the upper shadow line, the middle thick line is the entity, and the lower thin line is the lower shadow line. When the closing price is higher than the opening price, that is, the stock price is on the rise, we call the K line as the positive line in this case, and the entity in the middle is indicated by blank or red.

taking yangxian as an example, the part between the highest price and the closing price is called "upper shadow", between the opening price and the closing price is called "entity", and between the opening price and the lowest price is called "lower shadow".

Drawing method:

First, find the highest and lowest prices of the day or a certain period and connect them vertically into a straight line; Then find out the opening and closing prices of the day or a certain period, and connect these two prices into a long and narrow rectangular column.

If the closing price of the day or a certain period is higher than the opening price (i.e. lower opening and higher closing price), we will use red to indicate it, or leave a blank on the column, which is called "positive line".

if the closing price of the day or a certain period is lower than the opening price (i.e. higher opening and lower closing), we will indicate it in blue, or paint the column in black, and this column is the "negative line".

Reference: Baidu Encyclopedia-Stock K-chart.