Closed period is one of the four periods that a fund must go through from raising to investing. Generally speaking, it is aimed at open-end funds. After the capital verification expires, the fund will be closed. During the closed period, the Fund neither accepts the subscription of fund shares nor the redemption request of fund shares. As for the length of the closure period, different fund products may have certain differences. As short as ten days to a month, as long as three months or even half a year. As for the specific closure period, there will be a clear agreement in the fund contract.