Floating profit and loss: also known as position profit and loss, refers to the potential profit and loss calculated according to the initial transaction price of the position contract and the settlement price of the day. The formula is: floating profit and loss = (settlement price of the day-opening price) * position * contract unit.

Closing profit and loss: as opposed to position profit and loss. Gains and losses of futures traders when they actually close their positions.

The calculation formula is as follows:

Final profit and loss = average historical warehouse profit and loss+average current warehouse profit and loss

Average historical warehouse profit and loss = ∑ [(selling closing price-settlement price on the last trading day) * selling liquidation amount]+∑ [(settlement price on the last trading day-buying liquidation price) * buying liquidation amount]

Average profit and loss of the day = ∑ [(selling closing price of the day-buying opening price of the day) * selling closing amount]+∑ [(selling opening price of the day-buying closing price of the day) * buying closing amount]

If the customer does not close the position on the same day, the closing profit and loss will be 0.

Mark-to-market profit and loss is one of the concepts of futures trading settlement, and the futures settlement system is "daily debt-free settlement system", also known as "daily mark-to-market system". That is, after the end of each trading day, all customers' positions are settled according to the settlement price, which is included in the profit and set aside the loss.