Glossary/Stock Options
Valuation & Equity

Stock Options

The right to buy company shares at a predetermined price, commonly used as employee compensation in startups.

Full Definition

Stock options give employees the right to purchase a specified number of company shares at a predetermined price (the "strike price" or "exercise price"), typically set at the fair market value on the grant date. They're a key component of startup compensation packages.

Types of Stock Options

  • ISOs (Incentive Stock Options): Tax-advantaged options for employees only, with favorable long-term capital gains treatment
  • NSOs (Non-Qualified Stock Options): Available to employees, advisors, and contractors; taxed as ordinary income upon exercise

Key Terms

  • Strike Price: The price at which you can buy shares (set at grant)
  • Vesting: The schedule on which options become exercisable
  • Exercise: Actually purchasing the shares by paying the strike price
  • Post-termination exercise period: Time to exercise after leaving (typically 90 days)

Real-World Example

An early engineer receives 50,000 stock options with a $0.10 strike price. If the company goes public at $20/share, each option is worth $19.90 in profit.

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Stock Options: Definition & Examples | Datapile