Choosing Strikes and Expirations

Choose the exposure and time horizon before choosing the contract. There is no universally best delta, strike or number of days to expiration. Two calls on the same stock can respond very differently because they combine different directional exposure, optional life and implied volatility.

Start with the event and holding period

Write down when the proposed thesis could be assessed, not just when a catalyst is scheduled. If a company reports after an option stops trading, that option may not cover the intended event in the way expected. Compare last trading time, exercise instructions and settlement rather than treating the expiry label as the whole timetable.

Longer life usually costs more for otherwise comparable conventional options, while reducing the pressure of a near-term deadline. It also leaves more volatility exposure. Shorter life can offer a smaller premium outlay but less time for a thesis to develop and faster changes in near-the-money delta.

Compare capital and sensitivity together

The $105 call uses less cash, but initially has only about 28 shares of delta exposure per standard contract. At expiration with stock at $104 it is worthless, while the $100 call is worth $400 and earns $50 before costs. Comparing three $105 calls with one $100 call changes both premium risk and total delta; “cheaper contract” does not mean the same trade at a discount.

Inspect the actual series

Compare spreads and size, not just open interest. Check whether IV rises around a particular event and whether a strike has unusually expensive downside protection. For spreads, verify matching terms. For short options, calculate the stock or cash obligation that assignment could create before considering the premium as income.

Use more than one outcome

Evaluate a favorable move, a flat market and an adverse move, both at expiration and at the planned exit date. An expiration breakeven is not a required stock price for selling a profitable option before expiry. Conversely, a favorable stock direction does not guarantee a profitable early exit when time or IV falls. Compare results after costs using the same capital or risk budget, and keep the basis of comparison explicit.