The full name in English is "Listened Open-end Fund" or "open-endfunds", while in Chinese it is called "Listed Open-end Fund" and abroad it is also called * * * mutual fund. In other words, after the issuance of listed open-end funds, investors can purchase and redeem fund shares at designated outlets, or buy and sell funds on exchanges. However, if investors want to sell the fund shares purchased at designated outlets, they must go through certain transfer custody procedures; Similarly, if you want to redeem the fund shares you bought online on the exchange and redeem them at designated outlets, you must also go through certain transfer custody procedures. It is a fund with variable issuance, and the total number of fund shares (or units) can be increased or decreased at any time. Investors can purchase or redeem it at the business place designated by the fund manager according to the quotation of the fund.