It is used in foreign exchange, futures market and stocks. The futures market is a place for futures trading and the sum of all kinds of trading relationships. It is a highly organized and standardized market form developed on the basis of the spot market according to the principle of "openness, fairness and justice". It is not only an extension of the spot market, but also another advanced development stage of the market. Even if there is no commodity, you can make a profit by selling it.