The concept of futures is that both parties do not have to deliver the physical object at the initial stage of trading, but agree to deliver the physical object at some time in the future. And sometime in the future depends on your choice. Because futures are T+0 trading, it should be said that futures can be traded any day before the delivery date, at least 1 day. If you continue to hold the contract and enter the delivery period, you must fulfill the contract ~

And generally close to the delivery month, the proportion of margin will be larger and larger. If it is speculation, it will be very uneconomical ~

I don't know if I can understand this explanation. Others who don't understand can leave a message.