Employee stock options
Also known as: ESOs, employer stock options
Employee stock options are rights granted by a company to its employees to buy the employer's stock at a fixed price for a set period. They are a form of compensation designed to align employee and shareholder interests.
Employee stock options give workers the right — but not the obligation — to purchase shares of their employer's stock at a preset exercise price (also called the strike or grant price), typically for up to ten years. If the stock rises above the exercise price, the employee can buy at a discount to the market; if it never does, the options simply expire worthless.
Unlike exchange-traded options, employee stock options are not standardized and cannot be sold to other investors. They usually come with a vesting schedule: an employee might vest 25% of a grant each year over four years, forfeiting unvested options if they leave the company early. This structure ties compensation to both tenure and company performance.
Tax treatment depends on the option type. With nonqualified stock options (NSOs), the spread between the market price and the exercise price at exercise is taxed as ordinary compensation income. Incentive stock options (ISOs) can qualify for capital gains treatment instead, provided the shares are held long enough after grant and exercise — though exercising ISOs can create alternative minimum tax considerations. Concentrating too much wealth in employer stock is also a classic suitability concern.
The Series 65 and Series 66 exams test employee stock options directly — especially the NSO-versus-ISO tax distinction and vesting mechanics — and the Series 7 expects you to understand them alongside other equity compensation concepts.
Key takeaways
- Employee stock options grant the right to buy employer stock at a fixed exercise price, usually subject to a vesting schedule.
- They differ from listed options: they are not standardized, not tradable, and often have terms as long as ten years.
- Nonqualified stock options generate ordinary income at exercise; incentive stock options can receive capital gains treatment if holding requirements are met.
- Heavy concentration in employer stock creates suitability and diversification concerns advisers must address.