The Impact of Stock Splits, Dividends, and Rights Issues on Option Contracts

Listed option contracts are standardized, but corporate actions can force the market to adjust those standard terms. This chapter covers the main adjustments students are expected to recognize: stock splits, stock dividends, cash dividends, the impact of dividends on option premiums, and rights issues.

The key exam skill is to identify what changes and what does not. A corporate action can alter the deliverable, strike relationship, or economic value of an option position, but not every dividend or restructuring event creates the same treatment. Students should focus on the logic of preserving economic fairness between long and short holders after the corporate action.

Exam Focus

• identify which corporate actions typically require contract adjustments
• distinguish stock splits, stock dividends, cash dividends, and rights issues
• understand why an adjustment is meant to preserve economic equivalence rather than create a gain or loss by itself

Official Topics

• Adjustments for Stock Splits
• Adjustments for Stock Dividends
• Cash Dividends
• Impact of Dividends on Option Premiums
• Rights Issues

In this section

• Adjustments for Stock Splits
  How stock splits change option deliverables, strike prices, and contract terms while preserving economic equivalence.
• Adjustments for Stock Dividends
  How stock dividends affect option deliverables and strike prices while preserving economic equivalence.
• Cash Dividends
  How routine and special cash dividends affect listed equity options, early exercise decisions, and contract adjustments.
• Impact of Dividends on Option Premiums
  Why expected dividends tend to lower call premiums, support put premiums, and affect early exercise decisions.
• Rights Issues
  How rights offerings change share economics and why listed option contracts may need adjusted deliverables or strikes.