ETF is the abbreviation of exchange traded fund, which is translated into "transactional open index fund" in Chinese, also known as exchange traded fund. ETF is an open-end securities investment fund product listed and traded on the exchange, and the trading procedure is exactly the same as that of stocks. The assets managed by ETF are stock portfolios. The types of stocks in this portfolio are the same as those in a specific index, such as the SSE 50 Index, and the number of each stock is consistent with the proportion of the constituent stocks of this index. The transaction price of ETF depends on the value of its stock portfolio, that is, the "net asset value of unit fund". ETF's portfolio usually completely replicates the underlying index, and its net performance is highly consistent with the specific index pegged. For example, the net performance of SSE 50ETF is highly consistent with the rise and fall of SSE 50 index.

If you use a lot of money to suppress ETF funds, it can really reduce the transaction price in the market, but it will not affect its net value. Too high discount rate will attract investors' attention, lead to buying and push up the price, so it has no special practical significance!