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

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

Because ETF funds adopt a relatively open trading method similar to stocks, there are certain risks in buying and selling ETF funds, and investors without market experience need to buy them carefully.

Extended data:

Pay attention to buying and selling ETF funds;

1, because ETF funds are listed and traded, just like stocks. If there is not enough trading volume every day, it means that there are not many buyers and sellers of this fund, which may lead to unsuccessful fund trading.

2.ETF funds are index funds, and the fund's ups and downs track the index performance. The performance of the fund depends on the index, so it is very important to track the error of the index. Therefore, when choosing ETF funds, we should also pay attention to the tracking error of ETF funds.

3. When the transaction price of ETF secondary market deviates from the net value of fund shares, that is, there is a discount or premium, investors can arbitrage between primary market, secondary market and stock spot market to obtain risk-free income.

In a trading day, investors can perform multiple operations. On the premise of avoiding risks, improve the profitability of holding ETF constituent stocks and improve the efficiency of capital use.

Baidu Encyclopedia-Trading Open Index Fund