IV Crush
IV crush is the sudden drop in implied volatility right after an event like earnings. Learn why it wipes out option buyers who were right about direction, and who it rewards.
IV crush is the sudden collapse in implied volatility right after a big event, like an earnings report. In a single moment, options that were expensive become cheap, and buyers who paid up can lose money even when they guessed the direction correctly.
It is the single most common way beginners get burned trading earnings. Once you see it, you never forget it. Let me show you with a balloon.
The Air Rushing Out
In the days before earnings, implied volatility inflates like a balloon. Everyone knows a surprise is coming, so they bid up options for protection and speculation. The balloon swells. Options get fat and expensive.
Then earnings come out. The uncertainty is gone. There is no more mystery to price in. And the balloon does exactly what a balloon does when the tension releases: the air rushes out all at once. Implied volatility collapses, and every option deflates with it, sometimes within minutes of the report.
The Trap: Right Direction, Still Lose
Here is the cruel part that catches new traders.
You buy a call before earnings because you are sure the company will beat. The stock does beat, and it rises. You were right. And yet your call is worth less than you paid. How?
You bought the call when the balloon was fully inflated, paying a fat, IV-swollen price. When earnings hit, the stock rose a little, but implied volatility collapsed. The value you lost to the vega drop was bigger than the value you gained from the small move up. You were right about direction and still lost money, because you overpaid for volatility that then vanished.
To profit as a buyer through earnings, the stock has to move more than the inflated price was already expecting. A small win in the right direction is often not enough.
Who IV Crush Rewards
The crush that punishes buyers is a gift to sellers.
Traders who sell options into high pre-earnings IV are betting on exactly this collapse. They collect the fat premium while the balloon is full, then watch it deflate and buy the option back cheaper, or let it expire. The very move that traps the buyer pays the seller. This is why selling premium into earnings is a well-known, if risky, income play.
- You buy options right before earnings
- You pay a fat, inflated premium
- The stock moves less than expected
- You sell inflated premium before the event
- Volatility collapses afterward
- You buy back cheaper or let it expire
- IV crush is the sudden collapse in implied volatility after an event.
- Options inflate before earnings and deflate right after.
- Buyers can be right about direction and still lose, because they overpaid for volatility.
- Sellers of inflated premium are the ones the crush rewards.
Pop Quiz
Three quick questions to see what stuck. Pick an answer and the explanation shows up right away.
What is IV crush?
IV crush is the rapid drop in implied volatility once the uncertainty of an event, like earnings, is resolved.
You bought a call before earnings, the stock rose a little, but your call lost value. Why?
You paid an inflated price. When IV crushed, the vega loss was bigger than the small directional gain, so the call fell.
Who tends to benefit from IV crush?
Sellers collect the fat premium while IV is high, then profit as it collapses. The crush that hurts buyers pays them.
Bottom Line
IV crush is the balloon deflating the instant an event ends. Options that were expensive on uncertainty suddenly are not, and buyers who paid up can lose even when they read the direction right.
If you trade around earnings, this is the trap to respect. Buyers need a move bigger than the inflated price expected. Sellers are betting on exactly the collapse that traps everyone else.
Keep going: the force behind the crush is vega, and the forecast that inflates is implied volatility.