The buyer in the market, referred to as

Sellers in the market. Opening a position refers to establishing a new futures contract. Closing a position means

Settle the existing position. Oil.jr 186.com/xueyuan/ If you expect to go up, you choose to buy.

Open a position (called a long position), you don't think it will go up again. If you want to sell more orders, choose to sell.

If you close your position, you will make money if you go up, and you will lose money if you fall. If you expect a decline, you will choose to sell.

Open a position (called an empty position), you think it won't fall again. Want to sell short positions, choose to buy.

Close your position, you will earn if you fall, and you will lose if you rise.