hello, investors can invest in ETF funds by subscription, purchase and redemption, trading and so on. Investors can subscribe for ETFs in cash, portfolio securities or other ways stipulated in the fund contract during the offering period. After ETF is listed and traded, investors can use securities accounts to buy and sell ETF shares through securities companies during the trading hours of the stock exchange, and make a transaction at the matching price of the trading system. During the period of ETF open subscription and redemption, investors can use the Shenzhen A-share account to apply for ETF subscription and redemption through the subscription and redemption agency securities company. ETF subscription and redemption has a high threshold for capital participation, generally around 1 million yuan, which is suitable for large investors and institutional investors to participate.