Open-end funds publish their net value every day, and its calculation method is the net asset value/share of the fund. The net value of closed-end funds is calculated in the same way as that of open-end funds. But closed-end funds publish their net value once a week. The daily price is the price at which closed-end funds trade in the stock market.
Because closed-end funds operate in a closed way, unlike open-end funds, which can be purchased and redeemed at any time (except closed purchase transactions), closed-end funds conduct share transactions in the stock market (that is, the "secondary market") from the perspective of maintaining liquidity. This price is not the net value of closed-end funds, but its market price. In this way, there is a price difference between the net value and the market price of closed-end funds, which is discounted most of the time, and a small number of closed-end funds will also generate a premium.