Financial asset derivatives are the product of financial innovation, that is, by creating financial instruments to help managers of financial institutions better control risks, which is called financial derivatives. At present, the main financial derivatives are: forward contracts, financial futures, options and swaps. Investment products such as funds and stocks are not included.

Money market is a short-term capital market, which refers to the financial market with a financing period of less than one year and is an important part of the financial market. Because the financial instruments contained in this market are mainly short-term credit instruments issued by the government, banks and industrial and commercial enterprises, with the characteristics of short term, strong liquidity and low risk, it is called "quasi-currency" after cash currency and deposit currency in the level of money supply, so this market is called "money market". Money market refers to the market where financial instruments with a maturity of less than one year are used as short-term financing media. Products traded in the money market refer to short-term financial instruments, mainly interbank loans, commercial bills, treasury bills and repurchase agreements.