However, closed-end funds usually publish discount rates regularly. Multiplying the current net value of the fund by this discount rate is the closed net value of the fund.
Sorry, I didn't look at the problem carefully. Now I'll answer it again:
Well, the newly issued open-end fund does have a three-month "closed period", which is also commonly known as the "open period". As the name implies, the opening period is a period of time for new funds to buy shares and open positions (usually three months), so the funds within the opening period cannot be redeemed. During this period, the net value of the fund will change, and the rise or fall will affect your income. This is very different from closed-end funds.