IV Crush Explained: Why Options Lose Value After Events
Learn why options can lose value even when you pick the right direction. Understand IV crush mechanics around earnings and how to trade it profitably.
What is IV Crush?
IV Crush is the rapid decline in implied volatility (and therefore option prices) that occurs after a major event like earnings, FDA decisions, or economic reports removes uncertainty from the market.
IV crush can cause options to lose 30-70% of their value overnight, even if the stock moves in your favor. It's the #1 reason options buyers lose money around earnings.
TL;DR - Quick Answer
IV crush = options lose value after events because uncertainty drops. Before earnings, IV spikes 30-100% (options expensive). After earnings, IV collapses (options cheap). Even if you're right on direction, IV crush can overwhelm your gains. Solutions: 1) Sell premium before events, 2) Use spreads to reduce vega exposure, 3) Buy options well before earnings when IV is still low.
What is IV Crush?
IV crush is the rapid collapse in implied volatility that occurs after a known event (earnings, FDA decisions, economic data) removes uncertainty from the market. Before the event, nobody knows the outcome—so options are priced with high implied volatility to account for the potential move. After the event, the uncertainty vanishes and IV plummets.
Example: NVDA reports earnings. Before the announcement, IV on the nearest expiration is 90%. After earnings, IV drops to 35%. A $10.00 ATM option might be worth only $5.00 the next morning—even if NVDA moved 3% in your favor. The IV crush overwhelmed your directional gain.
How IV Crush Destroys Option Buyers
Every option's price includes a volatility component (extrinsic value). When you buy an option at 90% IV, you're paying for a large expected move. If IV drops to 35%, that volatility premium evaporates—and so does a huge chunk of your option's value.
The math: An AAPL ATM option with 30 days to expiration at 40% IV might cost $6.00. At 25% IV, the same option is worth $3.75. That's a 37% loss just from the IV change—the stock didn't even move. This is why buying single-leg options into earnings is so dangerous.
When IV Crush Hits Hardest
IV crush is most severe on: short-dated options (highest vega relative to price), ATM options (highest absolute vega), and high-IV situations where the crush is 50%+ of current IV. Weekly options expiring the day after earnings experience the worst IV crush.
Strategies to Handle IV Crush
1. Use Vertical Spreads
A debit spread (buy one option, sell another at a different strike) has reduced vega because the short leg offsets part of the long leg's IV exposure. If you're bullish on AAPL before earnings, buy a call spread instead of a naked call.
2. Sell Premium Before Events
Iron condors, strangles, and credit spreads profit from IV crush. Sell them 1-3 days before earnings, and the post-earnings IV collapse works in your favor. Historically, selling premium around earnings is profitable about 70-80% of the time.
3. Buy Early, Sell Before
Buy options 2-3 weeks before earnings when IV is lower, then sell them 1-2 days before earnings when IV has expanded. You profit from the IV ramp-up without holding through the crush.
Key Takeaways
- IV crush = rapid IV decline after events, causing options to lose 30-70% of value
- Buying naked options into earnings is dangerous—IV crush can erase directional gains
- Use spreads to reduce vega exposure and limit IV crush damage
- Sell premium before events to profit from IV crush (iron condors, strangles)
- Check IV rank before any earnings trade—if IV is already low, crush will be minimal
Related Options Strategies
Implied Volatility Guide
Master IV fundamentals to understand IV crush.
Earnings Trading Guide
Complete guide to trading options around earnings.
IV Rank and Percentile
Measure whether IV is elevated to gauge crush potential.
Understanding related strategies helps you choose the best approach for your market outlook and risk tolerance. Each strategy has unique characteristics that make it suitable for different market conditions.
Ready to continue learning?
Explore more topics in our Learning Center or try our free demo.