About shorting futures, it means that you have a contract to buy, and then sell it high and buy it low. What is the difference between this and doing more? Is it possible to sell only without a contract at hand? Yes, that's it. Short futures don't need anything, as long as there is a margin. This means that you can sell this contract first in the case of bearish. Wait until it falls before buying the closing price. Is to sell high first, then buy low. This is contrary to the spot market order.

Such as gold futures. If it is currently per gram of 280 yuan. China gold futures standard contract 1 000g1,margin 14%. Then the value of1000g is 280,000 yuan. But as long as you pay 39200, you can sell 1 empty orders. In essence, 1000 grams of gold was thrown. It doesn't matter if you don't have 1 gram of gold on hand now. By the time you close your position, the difference will be added or deducted from the deposit of 39,200 yuan. Obviously, if the market falls 14%. Then your savings have doubled. And if, on the other hand, it goes up by 14%, then your deposit will go up in smoke.