The so-called futures price is a future price. For example, the current price of the rebar 13 10 contract is 3526, but some people think that the price is too high, so they sell the contract and the price falls. Some people think it can go up, so they keep buying and pushing up the price. Therefore, the futures price is now everyone's expectation of the expiration point price, and the size of this price depends on the strength comparison between the long and short sides.

Intuitively, the landlord can refer to the stock price, and the rise and fall of the stock price also depends on the comparison of the strength of both parties.

If it is an option, its exercise price is certain, that is, the final determined price of the maturity price is the exercise price determined when the contract is concluded, but the premium of the option will change.