Because the market needs it
Because for the market, if there is such a downward trend, they will feel very powerless to save it. When people buy funds and bonds, they usually consider such problems, because after all, such problems will definitely be considered. When buying such problems, we will find that it is very impossible to make money and make profits steadily.
The market competitiveness is relatively large.
Because the market situation is also a trend, including that we can't always be profitable, which is too big for distribution control in some markets. And now, for many securities companies, including some other joint-stock companies, the competition is very fierce, so for such macro-control, it is sure to continue to grow steadily. For some of these teams, there must be ups and downs in order to maximize this benefit.
It is impossible to say that things on the market can grow as long as we spend money on them, so for many people, we can buy the biggest and best funds as long as we spend money. This will also make them feel very profitable, but the market is completely impossible. Because after all, for such a money-making model, it is only a business model.