The second is to specify the price. At what price do you want to buy or sell, you need to fill in the price you need to buy or sell. Business will not be concluded unless your price is reached. However, you should note that the principle of matching transactions is: price first, time first, and it is best to take profit. If you stop loss, many people don't have this function, and it is not as good as foreign exchange. Foreign exchange only starts trading after triggering your designated price.
For example, in futures, you bought the rise of sugar at 5000 yuan, and now the price is 4950 yuan. You have to specify a stop loss at 4900 yuan, and close your position as soon as you hang it. The system will think that you have helped you level a good price!