One is the floor fund, which can be traded directly on the stock exchange like stocks, namely Unicom ETF(5 13050). The characteristic of floor funds is that investors need to open a stock account to buy and sell funds on the floor, which is essentially from other investors. One is OTC funds, which can be purchased and redeemed on various OTC fund sales platforms, namely Efund China Unicom 50ETF Connection A (code 006327). The characteristic of OTC funds is that investors can purchase and redeem funds on the platform without opening a stock account, and the essence is to buy and sell funds from fund companies.