Stocks, futures, foreign exchange and domestic stocks are all T+ 1, which can be institutionalized for speculation. You play US stocks bought at $8, sell them at $8. 1 minute to earn the price difference, or borrow stocks at $ 8. 1 to buy them and return them to earn the price difference of 1 dollar, and you will know. Without the hit rate of 100%, you may earn 10 times when you lose money. It's normal to want to hit someone. The main thing is that if you want to make a stable profit, you need to take care of your own hands. If you don't manage your own hands well, it will be destroyed by the market sooner or later. Speculation is not that easy. This group can't say clearly. In a word, there is no free lunch.