The same is true for technical analysis, such as K-line theory and wave theory. It's just the reverse operation mode provided by futures, that is, you can buy up or down! There is no such operation in stocks during the trading hours of more than 20 hours every day. Generally speaking, futures stock indexes greatly shorten the time of stock trading. Stocks can make money, and futures stock indexes will certainly make money! If the stock market loses money, the futures market will basically lose money! It's just that the futures market won't let you get stuck. A one-month contract.