For example, it has gone up. There is a lot of money outside the market willing to buy at a high price, and more money comes in than goes out, so the stock price goes up.

As for why funds are willing to enter the market, that is the reason that needs more consideration. The first is the macroeconomic situation, such as the economic crisis. Therefore, all share prices cannot rise indefinitely in the last year or two. If it rebounds again, it will only rebound and not reverse. If you go up again, there will be a high point, not a hard rise in one breath. Secondly, the economic situation of industries and enterprises. The third is the future expectation of this enterprise, such as the pharmaceutical industry and the national universal health insurance. In the future, more and more people will see a doctor, so the drugs will sell better and better. Fourth, some catalysts exploded at special points. For example, the price of colored plates is definitely the lowest point in recent years. Professionals know that now is a good time to invest and buy, but it may not rise immediately after buying. It needs to wait for a tipping point, and this tipping point is that the Federal Reserve issues a large amount of US dollar currency to buy US Treasury bonds, and a large amount of money issuance causes inflation, which leads to an increase in international commodity prices, which in turn leads to an increase in futures prices. Because the price of non-ferrous futures has risen, enterprises will definitely make more money than in the past, so the stock has finally reached this critical point, and then everyone knows about this round of non-ferrous rise.