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IV Crush: Why Options Drop After Earnings

IV crush is the single most common reason a well-reasoned earnings option trade loses money. Implied volatility — the market's expectation of future price swings — climbs into a report and then collapses the instant the numbers are out. That collapse drains premium from every option, whether you were right on direction or not.

Why IV inflates before earnings

Options price in uncertainty. In the days before earnings, the outcome is genuinely unknown, so implied volatility rises and option premiums swell. The market is charging more for the risk of a big overnight gap. This is the same phenomenon that produces a large implied move — high IV and a wide expected move are two views of the same pre-earnings premium.

Why it collapses after the print

The moment results are released, the uncertainty that justified the elevated IV is gone. The market knows the number. Implied volatility snaps back toward its normal level — for large caps, a 40–60% drop in IV overnight is typical. Because option value scales with IV, that collapse alone can wipe out a big fraction of an option's price before the stock has moved a cent.

Trading around the crush

The practical takeaway: buying options into earnings means paying peak premium for something about to be marked down. A long call needs the stock to move more than the implied move and to overcome the IV crush — two hurdles at once. Traders who want to be short volatility instead sell premium through defined-risk spreads (credit spreads, iron condors), letting the crush work for them, with a capped loss if the stock gaps hard. Whichever side you take, size it as a defined-risk position; a scheduled binary event is no place for an uncapped one. tickerseer's weekly earnings preview flags who reports when so you can plan the structure in advance.

Frequently asked

What is IV crush?

IV crush is the sharp drop in implied volatility immediately after an earnings report. Implied volatility inflates before the event because the outcome is unknown, then collapses once results are public — draining premium from options regardless of which way the stock moves.

Why did my call lose money after a good earnings report?

Most likely IV crush, or the stock moving less than the implied move. You paid an inflated, pre-earnings premium; once the report was out, implied volatility collapsed and took much of the option's value with it, even though the stock rose.

How do you avoid IV crush?

You can't avoid it, but you can trade with it instead of against it. Selling premium through defined-risk spreads profits from the collapse, whereas buying long options fights it. If you do buy options into earnings, expect a 40–60% IV drop and require an expected move well above the implied one.