K-line generally refers to K-line chart, which originated in Tokugawa shogunate era in Japan and was introduced into stock market and futures market because of its ingenious and unique drawing method. ?

The form of K-line chart can be divided into reverse form and finishing form. The drawing method of K-line chart in stock market and futures market includes four data: opening price, highest price, lowest price and closing price. All K-lines are centered around these four data, reflecting the general situation and price information.

K-line chart is a kind of chart source in Tokugawa shogunate era in Japan. It was used by businessmen in Japanese rice market at that time to record the market and price fluctuation of rice market, and then it was introduced into stock market and futures market because of its ingenious and unique drawing method. This chart analysis method is particularly popular in China and even the whole Southeast Asia. Because the chart drawn in this way looks like candles, and these candles are black and white, it is also called yin-yang line chart.

Drawing method:

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

If the closing price of the day or a certain period of time is higher than the opening price (that is, lower prices and higher prices), we will indicate it in red or leave a blank on the column, which is called "positive line". If the closing price of the day or a certain period of time is lower than the opening price (that is, high opening and low going), we will use green to indicate it, or paint the column black, and this column is the "negative line".

Similarly, if you draw a K-line chart with one minute's price data, it is called a one-minute K-line. Draw a K-line chart with one month's data, which is called a monthly K-line chart. The drawing cycle can be flexibly selected as required, and K-lines with a cycle of 2 minutes and 3 minutes can also be seen in some professional drawing software.