2. Redemption, also known as repurchase, is aimed at open-end funds. Investors directly or through an agency request the fund management company to withdraw part or all of the investment from the fund and remit the repurchase money to the investor's account. People usually refer to funds mainly as securities investment funds.

3. The net value of a fund unit is the net asset value of each fund unit, which is equal to the balance of the total assets of the fund minus the total liabilities and then divided by the total number of unit shares issued by the fund. The subscription and redemption of open-end funds are carried out at this price. The transaction price of closed-end funds is the known market price at the time of trading; On the other hand, the unit transaction price of the open-end fund depends on the net asset value of the unit fund, which is unknown at the time of subscription and redemption (but it can be calculated after the market closes on the same day and announced on the next trading day).