Articles and Updates
January 2026
December Webinar Key Takeaways: Exercise & Assignment and Corporate Actions in Options Trading
In December, OIC instructor Mark Benzaquen led two webinars on fundamental concepts in options trading: Understanding Options Exercise & Assignment: Features and Critical Aspects and Corporate Actions and Options: Navigating Potential Contract Adjustments. Both sessions provided practical knowledge essential for managing risk, understanding contractual obligations, and navigating complex market events that can significantly affect option positions.
Key Moments from Corporate Actions and Options: Navigating Potential Contract Adjustments
What We Covered:
Exercise and Assignment: Understanding Rights and Obligations
- Exercise: The process by which an options buyer enacts their contractual rights.
- Assignment: The seller's fulfillment of their contractual obligations.
- Style Differences: American-style options can be exercised anytime on or before expiration, while European-style options can only be exercised at expiration.
After-Hours Movements and Proactive Management
- After-hours market activity can turn out-of-the-money options in-the-money (or vice versa), creating unexpected exposure. Understanding brokerage policies on manual exercise procedures and cut-off times is essential.
Corporate Actions Require Case-by-Case Adjustments
- Corporate events — mergers, stock splits, dividends, and bankruptcies — can alter option contract terms including strike prices, underlying assets, quantities, and expiration dates. These adjustments follow OCC By-Laws and SEC rules and are handled on a case-by-case basis.
Key Considerations Include:
- Non-ordinary dividends typically are adjusted by either lowering strike prices by the dividend amount or by including the dividend amount to the deliverable
- Bankruptcy can render call options worthless and put options at full value
- Trading halts don't eliminate rights/obligations but may impact position management
Keep Learning:
Key Moments from Understanding Options Exercise & Assignment: Features and Critical AspectsKey Moments from Corporate Actions and Options: Navigating Potential Contract Adjustments
Meet OIC instructor

Mark Benzaquen
Mark, OIC instructor and Principal, Investor Education at OCC, brings 20+ years of experience with options in the Financial Services industry. Mark began his career in options with Stafford Trading, LLC in 1997 before transitioning to brokerage operations with MF Global in 2000. For more than a decade, Mark was the Lead Broker for his firm in the NDX/RUT trading pit, gaining special insight into customer order flow and trade execution.