Futures, usually futures contracts, are contracts. A standardized contract made by a futures exchange to deliver a certain amount of subject matter at a specific time and place in the future. This subject matter, also known as the underlying asset, can be a commodity, such as copper or crude oil, a financial instrument, such as foreign exchange and bonds, or a financial indicator, such as three-month interbank offered rate or stock index. Futures trading is an inevitable product of the development of market economy to a certain stage.

Future positions, also known as "position". Refers to the position held by futures investors. Holding multiple orders becomes "long" and empty orders become short. The difference between multiple orders and empty orders becomes a "net position". In banking, position is also called "head lining", which means money, and it is a popular term in financial and commercial circles. If the bank's income exceeds its expenditure in all the receipts and payments of the day, it is called "multi-position"; If the payment exceeds its income, it is called a "short position". The behavior of predicting the number and number of such positions is called "position rolling". The act of trying to transfer funds everywhere is called "changing positions" If the temporarily unused funds are greater than the required amount, it is called "loose position", and if the required funds are greater than the idle amount, it is called "tight position".