both. Etf funds belong to on-site funds. Funds traded in stock exchanges, like stocks, are traded at real-time market prices and follow the principle of price priority and time priority. Cross-border etfs, bond ETFs, money fund ETFs and gold ETFs are subject to T+ trading, which can be bought and sold on the same day, while the remaining ETF funds are subject to T+1 trading, which cannot be bought and sold on the same day, and can only be sold on the second trading day.

T+ is an option trading system. Any trading system that handles the clearing and delivery procedures of options and prices on the day of option transaction is called T+ trading. Generally speaking, options bought on the same day can be sold on the same day.

Advantages of T+ trading:

1. It is conducive to stimulating trading volume. Because T+ trading has unlimited trading times in a trading day, experienced traders can keep repeating a high winning rate transaction on the same day, so as to continuously accumulate profits.

2. The same fund can be bought and sold repeatedly in one trading day, and the utilization rate of funds is multiplied.

in 3. t+ trading, you can sell your hand at any time, and you can stop the loss to the maximum extent.

4. On-site funds are traded in the same way as stocks, and those bought on the same day can't be sold until the next day. However, if you have chips in your hand, you can make your own T+ and benefit from the operation in one day. There are two ways: 1. Buy again when the price is low, and sell the original share when the price is high. For example, if you already have 1 shares and buy another 1 shares at a lower level on the same day, you can sell the original 1 shares after buying them and making a profit, so that you can make a profit without changing your shareholding. 2. The money recovered after selling at a high level on the same day is taken back again at a low level: for example, the original holding of 1, shares was sold at a high price, and after selling, the stock price dropped rapidly and then bought back, so there were still 1, shares, but the balance increased, which reduced the cost accordingly.