Invented by GeorgeLindsay. The Bull and Bear Prediction Index was invented by American financier GeorgeLindsay, who was a famous stock analyst and cycle theorist in the first half of the 20th century. He put forward the concepts of bull market, bear market, rebound and consolidation, combined with technical indicators such as triangle, wave and cycle, and finally put forward the prediction index of bull and bear. This indicator is widely used in the stock and futures markets and is considered as an effective indicator to judge the market trend. The calculation formula of Bull and Bear Prophet Index is complicated, which may be different according to different time periods and stock market fluctuations. Generally speaking, this indicator needs to be analyzed periodically according to the characteristics of the peak, trough and rebound of the stock trend, and comprehensively consider various technical indicators to calculate the strength comparison between bulls and bears in the current market. By comparing the numerical changes of indicators, we can judge the trend of bulls and bears in the stock market and provide reference for investors.