Generally, when trading crude oil, when the risk rate is lower than 70%, the system will force all contract varieties held in the margin account to be closed due to insufficient margin.

Holding positions overnight is risky. If there is a big fluctuation at night, it is easy to explode, so you must set a stop loss and take profit.

The so-called forced liquidation is what we usually call short positions. This is mainly due to insufficient funds in the investor's account, which leads to high risk, and the system will automatically close the position with you. The general liquidation rule is that when the net value in the account is less than half of the used margin, that is, when the risk rate is less than 70%, the liquidation will be forced.