There are bull markets and bear markets in the stock market, just like there are four seasons in a year, namely early summer, autumn and winter, and gambling has losses and wins, which is a natural law. There are mainly the following reasons for the bull market and bear market in the stock market:

1, the periodicity of fundamentals leads to bull market and bear market. The development of national economy and the operation of listed companies are cyclical. When the national economy develops faster and better and the profit growth rate of enterprises increases, there will be a bull market; When the national economy develops slowly and the enterprise economy is depressed, there will be a bear market.

2. The cyclical change of funds leads to the emergence of bull market and bear market. When the market interest rate is relatively high, there will be continuous interest rate cuts, and people will put bank money into it. At the same time, the cost of loan financing is also declining, which will promote the rise of leveraged investment. When there is more money, it will flock to the stock market, so the bull market will come. On the contrary, there will be a bear market.

3. Technical indicators, the launch of the most important stock index futures, market sentiment and major events may affect the bull market and bear market of the stock market.