Settlement price is a calculation method formulated by the exchange for the settlement or delivery of various contracts, which has nothing to do with your actual profit and loss, so it is meaningless to calculate profit and loss by looking at settlement price. However, it should be noted that if your price is far from the settlement price, you should pay attention, because the settlement price represents the average transaction price of the day, and it is abnormal to stay away from the average price, so you should take this into account in the next day's transaction.