Investors can freely buy and sell equivalent spot foreign exchange within the quota, and the gains and losses arising from the operation are automatically deducted or deposited into the above investment account, so that small investors can obtain a larger trading quota with smaller funds.

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 credit operation limit is set by the (investment) bank (or brokerage bank) (that is, the leverage effect is 20-400 times, and it is illegal to exceed 400 times).