Be sure to stop loss in time, you can throw it out, otherwise you will lose the principal. A loss exceeding the principal means that the balance of the deposit is insufficient, which is often referred to as a burst of positions. If it exceeds the principal, the regular foreign exchange broker will give it to you long before the position is broken, and there is no way for you to pay it back because there is a risk control mechanism. If it's an electronic disk of a domestic fraud company, it's hard to say. Maybe you can make up the money or something. Basically, exceeding the principal is called short position, and the platform will force the liquidation. Of course, negative values generally do not need to be repaid by investors. If you want to continue to operate, you can continue to invest, and you can contact customer service directly to clear the negative value before investing. Does not occupy the capital.