yes.

the trading rules of p>etf funds are the same as those of ordinary stocks, and the trading rule of T plus 1 is adopted. It cannot be sold on the day of purchase, and can only be sold on the day after purchase.

etf funds can't be redeemed on the day of subscription except that they can't be sold on the day of purchase. Etf funds purchase and redemption also adopt the T+1 rule, which can only be redeemed the next day after purchase.