However, with the change of spot price, the price of the corresponding futures contract will also change, which will correspondingly drive the change of the original contract value.

For example, in the T period when the contract is reached, the futures price (referring to the agreed delivery price) is F= 1. 1, and the spot price is S= 1. At t2, S rises to S2= 1.2, and the futures price rises to F2= 1.35.

Hope to adopt, thank you!