2。 Hedge. For example, a factory plans to buy a batch of B goods worth 65,438+000 yuan a ton next month. In order to prevent the price of commodity B from rising within three months, A can buy B at 65,438+000 workers/ton. After three months, if the spot price of B is 1 10 yuan/ton, A will earn 10 yuan, and if the spot price of B is 90 yuan/ton, A will lose 10 yuan. But in either case, the actual price for A to buy B is 100 yuan/ton.