ETF fund is an open-end fund with variable fund share, which is listed and traded on the exchange. ETF fund itself can only arbitrage, not short, but it can be short by using margin financing and SSE 50ETF.

ETF is included in the scope of margin financing and securities lending, and investors can open the margin financing and securities lending authority and sell securities to achieve the purpose of shorting. Using SSE 50ETF options, you can choose to buy put options or sell long options to play a short role.

ETF funds are listed and traded on the exchange, but they are flexible. Investors can purchase or redeem fund shares in the primary market, and can also buy and sell in the secondary market. It generally passively follows a target index and obtains basically the same rate of return as the index. Generally, the code in Shanghai starts with 5 1, and the code in Shenzhen starts with 1599.

Buying ETF funds is similar to buying stocks. Investors can buy and sell at the market price, but investors buy ETF funds without stamp duty, which is equivalent to buying an index portfolio.

ETF funds are exchange-traded funds, and many ETF funds track an index.

Although investing in ETFs avoids the troublesome stock selection process of investing in stocks, ETFs sometimes fall. I believe that many investors have the idea of shorting at this time.

Transactional open-end index fund is a special type of open-end fund, which combines the operating characteristics of closed-end fund and open-end fund. Investors can buy or redeem fund shares from fund management companies, and at the same time, they can buy and sell ETF shares in the secondary market at the market price like closed-end funds. However, the purchase and redemption must use a basket of shares for fund shares or use a basket of shares for fund shares.

Because there are both secondary market transactions and subscription and redemption mechanisms, investors can carry out arbitrage transactions when there is a difference between the market price of ETF and the net value of fund units. The existence of arbitrage mechanism makes ETF avoid the common discount problem of closed-end funds.