None of their answers is right. China can't trade at high frequency, whether it is the stock market or the futures market, which is mainly caused by the system. Let me give you an example. We all know that there are two exchanges in China, but you can't buy China oil in the Shenzhen market. There are countless dealers in the United States, and every dealer can buy oil from China. Note that China adopts the membership system and the United States adopts the corporate system. High-frequency trading occurs because American traders will cause price inconsistency when customers place orders. That is, someone sold 1 share in 235678 microseconds and bought 2 shares in 236945 microseconds. At this time, high-frequency trading can arbitrage. The main reason is the different systems. China is a macro-transaction, and developed countries have entered a micro-transaction. So high-frequency trading is impossible in China. As for the report. Ha ha! No one with mental illness will call himself a mental illness.