IV Crush & Events
Before a big event (like company results), options get expensive because everyone expects fireworks. The moment the news is out, that extra cost vanishes instantly — like a hyped concert ticket becoming worthless the second the show ends. This is why you can guess the direction right and STILL lose money buying options before results.
The most painful lesson many option buyers learn: you can be right about the direction and still lose money. The culprit is IV crush — the collapse of implied volatility after a known event.
Why IV rises before events
Before a known catalyst — company results, Budget day, an RBI decision, a major election count — uncertainty is high, so the market bids up implied volatility. Options get expensive because everyone expects a move. This is the worst time to be a naive buyer.
The crush
The instant the event passes, uncertainty resolves. IV collapses — often dramatically. An option you bought at 40% IV might reprice at 20% IV overnight, halving its time value. Even if the stock moved your way, the vega loss from the IV crush can swamp the delta gain. You were right and still lost.
Who profits from the crush
Sellers. A trader who sells inflated pre-event premium and buys it back after the crush captures the IV collapse. Defined-risk structures like iron condors or short strangles are built precisely to harvest post-event IV crush — accepting the move risk in exchange for the vega edge.