Of all the recurring phenomena in options markets, the implied volatility crush is the most predictable — and, for many retail traders, the most misunderstood. They buy options ahead of earnings because they see the elevated premium and associate it with opportunity. They are right about one thing: the IV is high. They are wrong about what that means. High IV means the market is pricing in a large move. When the event resolves and the uncertainty is gone, that premium collapses. The options they bought at 40% IV are worth significantly less the next day even if the stock moved in their favor. This is IV crush, and understanding it is foundational to any earnings-related strategy.
The Mechanics
Before an earnings announcement, option sellers are uncertain about the outcome in both directions. That uncertainty gets priced into option premiums — reflected as elevated implied volatility. The options chain for a stock reporting earnings in two weeks may show front-month ATM options priced at 60%, 70%, even 90% IV. Compare that to the same stock 30 days after earnings, where IV may have collapsed to 30% or lower, with no change in the underlying's fundamental risk profile.
The IV crush happens because implied volatility is not a fixed property of the stock — it is a market forecast of uncertainty. The forecast is high before the event. After the event, the uncertainty is resolved (even if the outcome is uncertain, the event is not), and the market revises its uncertainty estimate downward. That revision is the crush.
For the option buyer, this creates a structural headwind. You need the stock to move far enough to offset the IV collapse, plus generate actual profit. For the option seller, the same dynamic creates a tailwind — you are collecting the inflated premium with the expectation that it will compress after the event.
The Calendar Spread Approach
The most common way to position for IV crush is the short-dated option sell — buying the stock's weekly or 2-week options right before earnings and selling them the day after. This works in theory but requires very precise timing, a wide bid-ask spread, and the ability to manage assignment risk. For most traders, the calendar spread is a more manageable structure.
A calendar spread involves selling a near-term option and buying the same strike in a later expiration. You collect the premium from the near-term sale (which collapses post-event) while holding a longer-dated option that retains its IV. If the stock doesn't move dramatically, both sides decay, but the near-term decay is steeper — the spread widens in your favor. If the stock moves significantly, the long side captures directional movement.
Example: Stock XYZ trades at $100. Earnings in 2 weeks. You sell the $102 call expiring in 2 weeks for $3.00. You buy the $102 call expiring in 5 weeks for $4.50. Net debit: $1.50. Post-earnings, if XYZ is up 3%, the near-term call expires or is worth very little. The 5-week call is still worth $3.50–$4.00 above the near-term decay. You close the spread for a profit.
Premium Collection Strategies
For traders who want to collect premium without holding through the event, a naked short straddle or strangle ahead of earnings is the most aggressive approach. You sell both the call and the put at strikes near the current price, collecting substantial premium. The risk is unlimited if the stock makes a large move in either direction. This strategy is appropriate only for traders with high risk tolerance, small position sizes relative to total capital, and the ability to manage margin calls in real time.
A more conservative version: sell an OTM strangle (put below the stock, call above the stock) rather than a straddle. This gives the stock more room to move before the short legs are threatened. You collect less premium, but your breakeven points are wider.
Positioning Before Q2 Earnings Season
Q2 earnings season for large-cap technology begins in the last week of May. IV is already elevated in the options market for the major names. The three-week window before heavy earnings activity is the appropriate time to establish calendar spreads — before IV reaches its peak in the final week before each report.
Key principle: never concentrate IV crush positions in a single name. Spread the risk across multiple names. The IV crush only works if the market's post-event IV revision is significant. In low-volatility names or in a market where the move is "expected" and priced in, the crush may be modest. Diversification across the calendar is the hedge against individual name outcomes not producing the expected IV compression.
Tools we use: We use OptionsStrat to visualize and analyze calendar spreads and IV crush positioning — including break-even points, max profit/loss zones, and probability distributions across strikes and expirations.