In the K-line chart of the stock market, the red line often represents the 15 moving average, the yellow line often represents the 10 moving average and the white line often represents the 5-day moving average. The colored wavy line in the K-line chart is the moving average system.

K line is also called candle chart, daily line, yin and yang line, bar line, red and black line, etc. Also known as the "K-line". It is based on the opening price, the highest price, the lowest price and the closing price of each analysis period. The forms of K-line chart can be divided into reverse form, arrangement form, gap and trend line. The post-K-line chart is introduced into the stock market and futures market because of its ingenious and unique drawing method.