The fund establishment date refers to the date when the fund manager announces the establishment of the fund after the fund meets the establishment conditions. The fund open day is a working day when you can go through a series of procedures such as opening an account, purchasing, redeeming, closing an account, reporting the loss and transferring money. For open-end funds, trading is not allowed on any working day. Therefore, it is stipulated that transactions should be conducted on certain working days every week, which are called open days. The fund raising period refers to the period from the announcement of the prospectus to the establishment date of the fund. The duration of the fund refers to the duration after the successful issuance of the fund and a closed period.