It means that the rebar futures commission is preferential, and only the original 1 discount is charged for the part other than the part charged by the exchange.

For example, the current transaction fee rate of rebar futures is 1 1. Suppose that the futures company where you open an account charges 1 times on this basis, that is, according to 12000. Then the opening fee is 20,000 yuan, the closing fee is 20,000 yuan, and the closing fee after opening the position on the same day is 1. 1.