You can purchase funds (subscription and subscription) after opening an account, and you can redeem them at any time on working days after purchase; Redemption is to sell all the funds you bought before. If the net value of the fund goes up, it means that you have earned it. If the net value falls, it means that you have lost money.

Cancellation means canceling the fund account, and you can't buy a fund after cancellation; You have to open a new fund account before you can buy it; After redemption, the fund can be purchased at any time on weekdays.

The time to buy and sell funds is the same as the time to buy and sell stocks.