Fund redemption refers to the behavior that fund holders sell their fund shares to fund managers to get back their funds. Effective redemption applications submitted by fund holders before the trading days of Shanghai Stock Exchange and Shenzhen Stock Exchange (9: 00 am-afternoon 15) and afternoon 15) will be confirmed by the net value of the fund calculated on that day according to the principle of unknown price. Applications submitted after 15 in the afternoon are usually confirmed by the net value calculated on the next fund open day.