Stock options: Stock options are an option and one of the most widely used stock option incentive models in the world. Refers to the right granted by the enterprise to the incentive object to purchase the company's shares at an agreed price within a certain period. People with this option can buy the company ’s stock at a predetermined price within a specified time, or they can waive this right. Stock options themselves cannot be transferred, and there are certain restrictions on the time and number of exercise of rights.