The time of the fund in the market is exactly the same as that of the stock. During the trading hours, the price changes in real time, buying and selling. The transaction is very fast; The transaction of OTC funds is called purchase and redemption, which corresponds to buying and selling. The trading of OTC funds is based on the principle of unknown price, that is, when you apply for redemption, you don't know the fund price at that time. You can't see it until the trading night when the fund company announces its net value.
What is the role of each?