K-line: Also known as Yin-Yang line, bar line, red-black line or candle line, after a period of trading, the stock price forms a special area or form on the chart, and different forms show different meanings. K-line chart originated from 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.

Specific steps of K-line analysis.

1, the stock price is in a downward channel, and there is a long shadow line and a small Yin-Yang K line on that day.

2. A huge long shadow Yin-Yang K line with a daily ratio of more than 5 times and a turnover rate of more than 10%.

3. At the close of the day, it fell below yesterday's closing price, with a drop of more than 5%.

4. The stock price is in the rebound stage, and there is a long shadow line and a small Yin-Yang K line on that day.