Futures trading is a kind of margin system, which is usually called leveraged trading. For example, the current soybean price is 3385 yuan/ton, and each contract is 10 ton. According to the margin ratio of 10%, the margin of a standard hand transaction is 3385 * 10 * 10% = 3385 yuan. This deposit is also a performance bond. If 65,438+00 tons of soybeans are needed for contract delivery, the remaining price difference can be made up at this price, and the physical soybeans can be extracted from the designated warehouse. If you don't need physical objects, just sell the order before the contract delivery date. (Buy and open positions, then sell and close positions, sell and open positions, then buy and close positions)