2. The so-called financial futures refer to futures contracts with financial instruments as the subject matter. Financial futures trading refers to the trading mode in which traders conduct transactions through public bidding on a specific exchange and promise to buy or sell a certain amount of certain financial commodities at a pre-agreed price on a specific date or period in the future. Financial futures trading has the general characteristics of futures trading, but compared with commodity futures, its contract subject matter is not physical goods, but financial goods, such as foreign exchange, bonds, stock indexes and so on.

3. Foreign exchange futures, also known as currency futures, refer to futures contracts that convert one currency into another at the current exchange rate on the last trading day. Generally speaking, one of the two currencies is the US dollar. In this case, the futures price will be expressed in the form of "X dollars against other currencies". The expression of the futures price of some currencies may be different from that of the corresponding spot exchange rate of foreign exchange.