Futures continuous contracts represent futures contracts in the current delivery month (or the latest delivery month). With the continuous delivery and update of the month, the continuous contract will also be updated. For example, after the rebar contract was delivered in April, the continuous contract became the data in May.

Futures Company III: The contract of the third delivery month after the current delivery month (or the latest delivery month).

Futures Company IV: Company III refers to the fourth delivery month contract after the current delivery month (or the latest delivery month) contract.