Don't stock index futures have to worry about not being able to ship?
Futures contracts are highly liquid, so you can offer them at any time if you want. If it is sealed in one board, that is, three boards, the exchange will force the liquidation. The contract is far away from the month, so I went out at a higher price. People who receive goods at a high level will have a higher target. They won't worry about not being able to deliver the goods. If they are wrong, they will decisively close their positions.