It means that the time for users to buy funds is uncertain, so they can buy them directly if they want to. It is different from fixed investment, and the time for inappropriate investors to buy funds is uncertain and irregular. If the user does not have the ability to choose time, it is more convenient to choose irregular or fixed investment.

What does fixed investment mean?

Fixed investment generally refers to the fixed investment of funds, that is, investors invest a certain amount in designated funds within a certain period of time, similar to the bank's lump sum deposit and withdrawal method.