In futures trading, with a spot size of 6.5438+0 million, you don't need to pay 6.5438+0 million. You only need to pay about one tenth of the deposit, and you have the right to buy and sell 6.5438+0 million futures trading. If deposited in the bank, too little interest may not be enough to make up for the loss of price fluctuations. Futures hedging is a tool to lock the price of raw materials and control risks.