Overnight interest is the daily interest that can be earned or paid according to the total number of positions. Each currency has its own benchmark interest rate, which is usually set by the central bank.

When you buy one currency, you are actually selling another currency. So the money you buy will help you earn interest, but the money you sell (or borrow) needs to pay interest. At 5: 00 a.m. Beijing time every day, your account will automatically clear interest. But if you close your position before 5 o'clock or enter the market after 5 o'clock, you don't have to pay or earn interest.