The base cover price in the secondary market is more influenced by the relationship between market supply and demand, so there may be a situation where the net value rises but the price does not rise or even falls, and the discount rate will rise. In the choice of closed-end funds, we mainly grasp two key points. The first focus is the focus of performance reversal. Grasp the fund whose discount rate is at a relatively high level and its future performance is reversed. The second focus is the focus of the event. Dividends of closed-end funds are important events every year, and dividends of closed-end funds are equivalent to partial closure. The right-filling effect after dividends increases the secondary market income of closed-end funds. In 2006 and 2007, closed-end funds attracted more and more attention from the market because of their rich income, large dividend ratio and obvious right-filling effect. In recent years, the dividend market has a phased trend in advance, mainly concentrated in those funds with high net worth and high growth rate that may have dividends.