1. It doesn't matter if the voucher for purchasing the fund is lost. You only need to print a fund balance in your fund account to prove that the investor's fund is online now. Just know the account name and password.

2. Concept introduction:

Open-end fund refers to an investment fund whose scale is not fixed, but which can issue new shares or be redeemed by investors at any time according to market supply and demand. Closed-end fund is relative to open-end fund, which refers to the investment fund whose fund size has been determined before issuance and remains unchanged within the specified period after issuance.