The fund follows the trading principle of "unknown price", that is, investors' purchase and redemption are calculated by the net asset value of fund shares after the closing of the market on the day of application. Therefore, investors buy and sell funds before 3 o'clock to calculate redemption funds or buy shares according to the net asset value announced that night.

On the contrary, when investors buy and sell funds after 3 o'clock, they will calculate redemption funds or purchase shares according to the net value of funds announced in the evening of the next trading day.