That is, after the buyer and the seller sign the contract, they pay for it with one hand and deliver it with the other, which is not normal.
Set a certain time limit in the contract, and then deliver it after it expires.
However, most futures transactions in reality have no physical delivery.
The main purpose of the futures market is not to provide goods for sale.
But for financing and avoiding risks.
It can't be said that it is an appointment, because most people still have to sell futures before they expire.
Earn the difference.