Most etf funds in the market are T+ 1 transactions, and a few are T+0 transactions. In addition, there are some trading rules, as follows:

1. The fund shares subscribed on the same day can be sold on the same day, but cannot be redeemed;

2. The fund shares bought on the same day can be redeemed on the same day, but they cannot be sold;

3. The securities bought on the same day can be used to buy fund shares on the same day, but they cannot be sold;

4. The securities redeemed on the same day can be sold on the same day, but they shall not be used to purchase fund shares.