There are three kinds of closed-end funds according to the specific forms of buying and selling prices: face value, net value and market price. Pay attention to the connection and difference between the three. Simply put, face value and net value are the basis of market price, and market price is the market expression form of face value and net value. The face value is the book value of the fund, and the net value is the actual value of the fund voucher, which is mainly determined by the intrinsic value of the fund itself, that is, the capital and income. The market price is the actual price of the fund, which is determined by the relationship between supply and demand.