First of all, it is not borrowing money. Leveraged trading involves margin. Let me give you an example. It costs 10 thousand yuan to buy a computer, but the money is not enough. At this time, the boss has a way to pay the deposit. The boss asked you to pay 1000 yuan to take the computer away. Did you take the computer with you, that is to say, you only spent 1000 to buy a computer with 10000? In other words, it means that your capital of 1000 yuan has increased by 10 times, reaching 10000 yuan, which means that there is a kind of leverage in it. So in fact, who did you borrow 9000 yuan from? Instead, you gave the boss a deposit of 1000 yuan to lend you the computer. If one day you don't want a computer, at this time, the computer just appreciated again. Originally it was 1 10,000, but now it has risen to 1.5 million. At this time, you sold the computer 15000 yuan, and then you still owe the boss 9000 yuan. You sold the computer to your boss for 9000 yuan at a price of 15000 yuan, but you earned a difference of 5000 yuan in the middle, which you actually did.