After the etf fund goes public, investors can continue to buy stocks with their own money. Buying ETF funds is buying a basket of stocks. There may be hundreds of stocks in a stock portfolio. Stocks, funds, wealth management products, stocks and convertible bonds were renewed and all stock accounts were settled. Etf is a special open-end fund. After the ETF fund goes public, investors can continue to buy stocks with their own money. Investors can buy and sell ETF shares in the secondary market like closed-end funds or stocks, and trade at any time during the opening hours. Another advantage of ETF is that open-end funds can purchase and redeem freely. Investors buy or redeem ETF shares from fund management companies with a basket of stocks as consideration.