1, shorting through the securities company's securities lending business, that is, borrowing etf from brokers to sell, and then buying it back to brokers at a low price. In this way, the authority of margin financing and securities lending is needed to carry out the operation of short selling, so as to achieve the purpose of shorting.
2. Shorting through corresponding financial derivatives, such as stock index futures and stock index options. At present, the main financial derivative of domestic etf index funds is options, and there is no fund corresponding to stock index futures. If you short in this way, you usually buy put options or sell call options to short.
There are also some special leveraged etf index funds in the US stock market that can be shorted, and they need to open US or Hong Kong stock accounts to operate. If investors want to short etf index funds, they can choose the way that suits them according to their own situation.