The book says that the underlying assets must be delivered on the maturity date of the futures contract? Didn't you say that futures contracts generally don't deliver physical goods? So if I take a contract and just want to make money, 1, domestic commodity futures trading, if the position is held until the final delivery date, physical delivery must be carried out. If you don't fulfill your obligations, you will be fined, which is much higher than fulfilling the delivery procedures.

2. There is no physical delivery of stock index futures, just pay the price difference.