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, the historical trend of individual stocks, the overall rise and fall of individual stocks, etc., all of which are general reasons (indirect reasons), and they all work through the two fundamental laws of value and supply and demand. Here's how these general reasons affect the stock market through two fundamental principles.

1. The change of policy fundamentals will only affect investors' confidence. For example, if the policy is favorable, investors' confidence will be enhanced and funds will enter the market enthusiastically, which will affect the change of supply and demand. If the policy is negative, the confidence of investors will be weakened, and funds will flow out of the stock market, which will lead to a decline in the stock market. Of course, sometimes changes in policy will also affect the value of stocks. For example, in the second half of 21, the state announced the policy of reducing the holdings of state-owned shares, and the state-owned shares that are not in circulation should be changed into tradable shares through reduction, which led to the depreciation of the original tradable shares, which led to a sharp drop in the stock market. Therefore, the negative and positive aspects of the policy sometimes affect the rise and fall of the stock market through the relationship between supply and demand, and sometimes through the relationship between value.

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 rise and fall of individual stocks and sectors will affect the rise and fall 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 opposite is true. Especially when the market bottoms out or peaks and suddenly changes, the rise and fall of the market has a great influence on individual stocks: when the market bottoms out, most of the stocks will bottom out and rise; When the market peaks, most stocks will peak and fall. Buying stocks when the market falls, the probability of losing money is great; It is much easier to make money by buying stocks when the market is rising. Practice has also proved that in June 21, the market reached a historical peak, and then it fell all the way, and almost all stocks fell by 3%-5%. During this period, it can be said that as long as you buy stocks, you will be trapped. Many investors lose more than 3% on average. Similarly, at the bottom of the market, even buying a stock casually can give you considerable income. For example, at the end of May 19th, 1995, almost all stocks rose by more than 3%; At the end of January 29, 22, almost all stocks rose by more than 2%. When the market changes sharply, it has a great influence on the rise and fall of stocks. However, we must also note that when the market does not change and is in a sideways state, the role of the market is not so obvious and important. For example, in the months after January 16, 23, the market was mostly sideways, and at this time, the impact of the market on the rise and fall of individual stocks was not obvious. The rise and fall of individual stocks was mainly affected by other factors, such as the influence of value relationship and the operation of main funds. In this way, at the beginning of 23, the so-called "local bull market" was formed because several valuable sectors were fully explored by the main funds. In short, we can't blindly emphasize the importance of the market, nor can we ignore the importance of the market. The market plays a different role at different times, which should be analyzed in detail.

3. The entry and exit of the main fund is very important for a stock, because the entry and exit of the main fund directly affects the supply and demand of the stock, thus playing an important role in the stock. Any stock with excellent performance will be "no use" without the exploration and care of the main funds. On the contrary, some loss-making ST stocks, driven by the main funds, have a continuous upward trend. Visible, the importance of the main funds.

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 positive, the stock price will generally rise. Of course, this is the general situation. Under special circumstances, and at a high level, the dealer sends out favorable cooperation with the shipment, so the stock price will fall. At that time, its main function was the outflow of main funds, which led to the decline of the stock price. Therefore, the changes in the fundamentals of individual stocks or the specific impact of the news of individual stocks on the stock price must also be carefully analyzed in combination with the technical position of individual stocks to avoid being fooled by false news. Be careful when the high position is good. Be careful when the high position is bad. The low position is good, but it can be cautiously optimistic. The low position is bad, and it is not necessarily bad.

5. The ups and downs of the historical trend of individual stocks Gann once said: "Human nature remains unchanged, so history continues to repeat itself." Therefore, the historical trend of a stock will also have a great influence on the future trend of the stock. Let's make a simple analogy: individual stocks are in a relatively high position after rising for a period of time (historical trend). At this time, the motivation for individual stocks to rise will be obviously weakened and the risks will gradually increase. Therefore, the rise during this period (historical trend) has an impact on the future trend of stocks, which is manifested in the increase of risks. Of course, this is only a simple example of the impact of historical trends on the future of stocks, and it is far from reaching Gann's realm of "human nature remains unchanged, so history continues to repeat itself". The stock market is a market formed by someone controlling the buying and selling of stocks. The ups and downs of the stock market are branded with traces of human nature. Human nature affects the stock market, and human nature is relatively unchanged. Therefore, the laws of the stock market will not change to a certain extent, so history will continue to repeat itself under the influence of human nature.

6. The overall ups and downs of individual stocks have an important influence on individual stocks. Similarly, the ups and downs of individual stocks in this sector also have a considerable influence. Because when the market rises, it is generally supported by hot plates. After the hot plate is formed, it will form a money-making effect in this plate, thus attracting more funds to enter this plate. In this way, the relationship between supply and demand has changed, and the supply of funds exceeds demand, so the stocks in this sector have risen much more than those in other sectors.