If a listed company has idle funds for entrusted financial management, it is understandable to try to take lower risks and obtain higher returns. But there is a question of degree here. If the main source of income of a listed company comes from such entrusted financial management, it would be extremely abnormal. Listed companies that lack stable main business should be vigilant. On the other hand, it also shows that the real economy lacks good investment opportunities and the real economy is not operating very well.