Your question is a question in itself. Is China stock a place for long-term investment? If you think so, read the history of China securities. Futures cannot simply be called speculation. If the function of futures is just what you think, it will not develop to this day. If you want to choose long-term investment, go to those companies with high cash, which is relatively suitable for this long-term investment. Futures, buying and selling is a contract. Some people need to hedge what they expect, while others go in for speculation. Without speculators, this futures market cannot operate normally. These speculators tend to be high-risk preferences. Secondly, futures make full use of the leverage effect of margin. Amplify the risks and benefits several times or even ten times.