2.KD index compares the relationship between price range and price closing price in a given time period. KD indicator is displayed by two lines: the main line is called %K line, and the second line is called %D line, and its value is the moving average of the main line %K, which is usually displayed as a solid curve, while the %D line is displayed as a point curve. In the design, the concept of momentum, strength index and the advantages of moving average are integrated. In the calculation process, the relationship between price and closing price is mainly studied, reflecting the strength of price trend and overbought and oversold phenomenon.
3. KDJ indicators are generally used in the statistical system of stock analysis. According to the statistical principle, the immature random value RSV of the previous calculation period is calculated by the highest price, lowest price and closing price of the previous calculation period in a specific period (usually 9 days, 9 weeks, etc.). ) and the proportional relationship between them. Then, according to smma method, the K value, D value and J value are calculated, and the stock trend is judged by drawing.
When the price rises, the closing price is often close to the upper end of the price range of the day; On the contrary, in the downward trend, the closing price tends to be close to the lower end of the price range of the day. In the stock market and futures market, before the market trend turns, most of them will close at high prices every day, and when they fall, the closing price will often close at low levels. In the design, the calculation of random amplitude and short-term fluctuation of price fluctuation is fully considered, which makes its short-term market measurement function more accurate and effective than the moving average, and more sensitive than the strength index in the short-term overbought and oversold forecast of the market. Therefore, this indicator is widely used by investors.