No, closed-end funds operate in a closed way. After the establishment of the fund, it entered a closed period. No transactions can be made during the closed period, and no fixed investment can be made. Only open-end funds can set fixed investment. Open-end funds operate in an open way and have no closed period.

Fixed investment is a fixed purchase fund for a specified period. Fixed investment does not require high investment level of investors and is suitable for most investors. The advantages of fixed investment are: 1, saving time and worry, and not staring at the market; 2. There is no need for timing or stop loss; 3. Compound interest calculation.