If you don't understand, let me give you another example. I'll leave you a laptop with a market value of 10000 yuan and promise to come back for it in three months. As a result, after analysis, you think that the price of computers may fall due to recent technological improvements and the reduction of raw materials. For example, after three months, the price may fall to 8000. Then you can sell the notebook at the current market price 10000. After three months, if the price really drops (assuming it drops to 8000), you can buy the notebook and return it to me for only 8000. In this way, I got my notebook back, and you fulfilled your obligation to keep it, but you still earned more 10000-8000=2000 yuan. If the price does not fall as you predicted after 3 months, but rises (assuming it rises to 12000), then you will be forced to buy back my notebook at a higher price (12000). There will be a loss of 2000 pounds among you. This is the short-selling mechanism of futures and the general principle of making money. In the case of rising prices, the principle of making money in futures is similar to that in stocks. Buy at a low price and sell at a high price to make money.
Generally speaking, shorting (buying down) means selling before buying, and long (buying up) means buying before selling. From the point of view of buying and selling, it is almost the same to buy first and then sell.
Advanced futures trading mechanism
Low transaction cost
The chance of making money is more than twice that of warrants.
If you want to write a blog,
Bo! It is better to have a bigger chance.