If the fund has no definite share, it can be revoked before 15 the next day. If the fund has confirmed its share, it cannot be revoked and can only be sold.

If the fund purchases before the trading day 15, the fund will determine its share on the second trading day and buy it according to the net value of the trading day. It needs to be cancelled before the trading day 15, otherwise the cancellation will be unsuccessful. If the fund purchases after the trading day 15, it needs to determine its share on the third trading day and buy according to the net value of the fund on the second trading day. Cancellation needs to be made on the second trading day.