Before a scheduled event, option premiums may reflect greater expected movement. After the information is released, uncertainty can fall and implied volatility can contract. This change can reduce premium even if the underlying moves in the anticipated direction.
Separate expected movement from direction
Implied volatility relates to the magnitude of expected movement embedded in pricing, not a guaranteed up or down forecast. The market can price a large move and receive a smaller one.
Understand what changes after the event
Results, policy decisions and major announcements resolve part of the uncertainty. With less unknown information, option buyers may face lower implied volatility and continued time decay.
- Pre-event volatility
- Actual underlying move
- Post-event volatility
- Time remaining
Keep event risk small enough to survive
Gaps and rapid repricing can bypass planned exits. Quantity should be based on a loss that remains manageable even when execution is worse than the ideal plan.
Compare implied movement with the event scenario
Use available option prices to understand how much movement appears to be priced, while recognising that calculation methods and market inputs differ. Then ask whether the thesis requires a move larger, faster or more directional than that expectation.
Test the option under a smaller-than-expected move and lower post-event volatility. This adverse scenario often reveals risk that a directional target alone misses.
- Expected-move estimate
- Directional thesis
- Post-event volatility
- Time remaining
Design the event-risk decision before the announcement
Set maximum loss, quantity and whether the position will be held through the release while the market is still orderly. Waiting until the event begins can make spreads wider and decisions more emotional.
Review both the underlying and premium after the event. A correct price direction with a poor premium outcome is useful evidence about contract selection and volatility exposure.
- Hold or exit decision
- Maximum rupee risk
- Gap allowance
- Post-event review