If the variety trading unit you are doing is 10 ton \ lot, you only need to leave the available funds in your account189 *10 =1890 yuan \ lot, that is to say, you need to leave1in your account.

Futures have leverage and margin trading. When the remaining funds in the futures account are used up, and the risk degree is greater than 100%, the futures company will inform investors to make up the margin or lighten their positions. If they don't act, they will be enforced by the risk control department of the futures company. Generally speaking, it is based on the risk of super-exchange. Only before the big holidays, the risk of super-futures companies, that is, the available funds, will be negative (the risk degree is greater than 100).

The loss of futures margin will be forced to close the position, depending on the customer's position level, and the futures leverage is generally 10 times:

If the position is 100%, the target position price changes reversely by about 3%, and the margin loss is above 30%, triggering a strong level.

If the position is 70%, the price of the target position changes by about 7%, and the margin loss is above 50%, triggering a strong level.

If the position is 30%, the price of the target position changes reversely by more than 25%, and the margin loss exceeds 75%, it will trigger a strong level. In short, the lower the customer's position, the safer it will be.