Foreign exchange speculation, foreign exchange margin trading (also known as foreign exchange speculation), refers to signing a contract with a (designated investment) bank, opening a trust investment account, depositing a sum of money (margin) as a guarantee, and the (investment) bank (or brokerage bank) sets the credit operation limit (that is, the leverage is 20-400 times, and it is illegal to exceed 400 times). Investors can freely buy and sell equivalent spot foreign exchange within the quota, and the gains and losses arising from the operation will be automatically deducted or deposited into the above investment account. Therefore, small investors can obtain a larger trading quota with smaller funds, enjoy the same foreign exchange trading purposes as global capital to avoid risks and create profit opportunities in exchange rate changes. Generally speaking, speculating in foreign exchange is an investment behavior.

Selling money and buying and selling foreign exchange outside the trading places stipulated by the state are illegal buying and selling foreign exchange. Including: buying and selling foreign exchange privately, buying and selling foreign exchange in disguise or buying and selling foreign exchange in reverse. For those who illegally buy or sell foreign exchange, the organs of the State Administration of Foreign Exchange shall give a warning, force exchange, confiscate the illegal income and impose a fine of not less than 30% of the illegal foreign exchange amount; If a crime is constituted, criminal responsibility shall be investigated according to law.