The fluctuation index (ADL) is a technical index that takes the number of stocks rising or falling every day as the calculation and observation object, so as to understand the popularity of the stock market, detect the strength of the internal capital kinetic energy of the stock market, and judge the future trend of the stock market. The volatility index only reflects the trend and trend of the general trend, and does not provide a signal for the rise and fall of individual stocks. Because there is often a phenomenon in the market, that is, the pull-up and suppression of large-cap index stocks make the index trend lose its true color, which affects investors' accurate judgment and analysis, and the falling index can well eliminate this distortion.

Fluctuation index (ADL)=∑ (number of houses rising-number of houses falling)

1. Volatility index is a technical index to understand the popularity of the stock market, detect the internal capital kinetic energy of megatrends and judge the future trend of the stock market. 2. When the stock index continues to rise, the volatility index also rises, and the stock index may rise again; The stock index continues to fall, the volatility index also drops, and the stock price may continue to fall. 3. If the stock index deviates from the volatility index, the stock index will often change with the movement trend of the volatility index; If the stock index rises and the volatility index falls, the stock index will soon fall back; Similarly, the stock index falls, the volatility index rises, and the stock index will rebound soon. 4. When the stock market is in a bull market, the volatility index shows an upward trend. If there is a sudden sharp decline during the period, then it will immediately turn around and hit a new high, which means that the market may hit a new high. When the stock market is in a short market, the volatility index shows a downward trend. If there is a sudden rise in the meantime, and then turn around and fall to break through the original low point, it shows that there is a new downward trend.