The continuous graph in futures refers to the continuous graph formed by a specific method from the first introduction of a futures product in history to the present. It covers all the price fluctuation ranges of futures products since their introduction. It is not a spot price and cannot be bought or sold. Can be used for long-term chart analysis.

The continuous contract here does not refer to a specific contract, but a change. For example, "Lu Tong Continuous" is the first trading contract after the current delivery, "Lutong Liansan" is the third trading contract after the current delivery, and so on.