Expiry strategy concepts (educational)

These pages explain the concepts traders reason about near expiry — how time decay, volatility crush and gamma shape defined-risk and neutral approaches, and how positions are adjusted, rolled or managed for assignment risk. They teach ideas and trade-offs, never specific trades.

Expiry Strategy Concepts: Expiry strategy concepts describe how traders think about the final days of a contract: harvesting theta while managing gamma risk, staying delta-neutral, using defined-risk structures, anticipating volatility crush, adjusting or rolling positions, and controlling assignment risk. These are educational frameworks, not recommendations.

Theta Harvesting Concepts

Time decay

Theta harvesting is the concept of structuring a position — typically by selling options — so that it profits from the steady erosion of an option's …

Neutral Expiry Concepts

Market view

Neutral expiry concepts describe structuring a position so its outcome depends on the underlying staying within a range by expiry, rather than on it …

Volatility Crush Concepts

Volatility

A volatility crush is the sharp, often sudden fall in an option's implied volatility that occurs once a known, anticipated event (like results, an RB…

Defined-Risk Approaches

Risk structure

A defined-risk approach is any option structure — typically combining a sold option with a bought option further from the money — where the maximum p…

Risk Management During Expiry

Risk structure

Risk management during expiry is the discipline of adjusting position sizing, monitoring and exit rules to account for the sharply rising gamma and s…

Position Adjustment Concepts

Risk structure

Position adjustment is the concept of modifying an existing options position — by adding, removing, or changing strikes of legs — in response to how …

Rolling Positions

Risk structure

Rolling a position means closing an option (or futures contract) that is nearing or at expiry and simultaneously opening a similar contract in a late…

Assignment Risk

Settlement risk

Assignment risk is the possibility that an option seller's short position finishes in-the-money at expiry, triggering an automatic obligation to sett…

Frequently asked questions

Why do some traders sell options near expiry?
Because time decay (theta) is fastest in the final days, so short-option positions can collect premium quickly if the underlying stays put. The trade-off is very high gamma risk: a sharp move can cause large, accelerating losses. This is an educational explanation, not advice.
What is a volatility crush?
A volatility crush is a sharp drop in implied volatility, typically after a scheduled event (results, policy decision) passes and uncertainty resolves. Option premiums fall even if the underlying barely moves, hurting option buyers and helping sellers who were short vega.
What is rolling a position?
Rolling means closing an expiring option and simultaneously opening a similar one in a later expiry (and/or different strike). Traders roll to extend a view, avoid assignment, or manage a position that is being tested, accepting new costs and risks each time.
Educational content only — not investment advice. See our Risk Disclosure.