The foreign exchange and gold markets are the largest financial markets in the world, with a daily turnover of $3 trillion, which is more than three times that of all stock markets and futures markets in the world. Foreign exchange and gold trading are divided into two types: bank firm trading and margin trading.

1) Firm banking transaction: Most banks in Chinese mainland can be opened. It is the exchange of real money and silver, which requires a lot of money and high fees.

2) Margin trading: the customer pays a certain margin to the foreign exchange dealer, and uses the leverage principle to enlarge the margin multiple, so as to obtain greater profits with small bets. At present, the most common proportion of overseas margin financing and securities lending is to use leverage of 100 times, which has the advantages of less funds needed, high returns and greater risks.