Stock return = (current price-yesterday's closing price) \ yesterday's closing price

There are many factors that affect the rise and fall of stocks, such as favorable policies, good or bad market environment, the entry and exit of main funds, major changes in the fundamentals of individual stocks, historical trends of individual stocks, and the overall rise and fall of individual stocks. , are general reasons (indirect reasons), are through the two fundamental laws of value and supply and demand. The following is how these general reasons affect the stock market through two basic principles.

1, changes in policy fundamentals generally only affect investor confidence.

2. The market environment is good or bad. Individual stocks form plates, and plates form the market. The market is composed of individual stocks and sectors, and the ups and downs of individual stocks and sectors will affect the ups and downs of the market. Similarly, the rise and fall of the market will in turn affect individual stocks. Because when the market goes up, the enthusiasm of investors to enter the market is relatively high, and the supply of funds in the market is relatively abundant, which makes the supply of funds for individual stocks relatively abundant, thus promoting the rise of individual stocks. When the market falls, the situation is just the opposite. Especially when the market bottoms out or peaks suddenly, the ups and downs of the market have a great influence on individual stocks: when the market bottoms out, most stocks will bottom out and rise; When the market peaks, most stocks will peak and fall. Buying stocks when the market falls has a high probability of losing money; When the market goes up, it is much easier to make money by buying stocks.

3. The entry and exit of main funds is very important for a stock, because the entry and exit of main funds directly affects the relationship between supply and demand of the stock, thus playing an important role in the stock.

4. Significant changes in the fundamentals of individual stocks The fundamentals of individual stocks determine the value of this stock to a considerable extent. Therefore, the fundamentals of individual stocks affect the stock price through the law of value. When the fundamentals of individual stocks are significantly negative, the stock price will generally fall. When the fundamentals of individual stocks are significantly improved, the stock price will generally rise. Of course, this is the general situation. Under special circumstances, and at a high level, the dealer issued a favorable response to the shipment, so the stock price will fall. At that time, its main function was the outflow of main capital, which led to the decline of stock price.