Short Choice Trading/Professional Trading An option is a right that can be exercised at some point in the future. After purchasing the option, if the exercise of the right on the expiration date is beneficial to the buyer, the buyer will receive corresponding income through exercise, and the seller needs to cooperate with the buyer to make corresponding expenses during exercise. If the exercise of the right on the due date is unfavorable to the buyer, the buyer may choose not to exercise the right, and the seller does not need to cooperate with the exercise to make corresponding expenses.