When Does IV Crush Typically Occur?
IV crush usually happens after 'the resolution of uncertainty' — the exact timing depends on the type of event. The most common is before the market open on the first trading day after an earnings release (in Beijing time, approximately the next day's open), and it also occurs after macro data releases. The situation in crypto markets is more complex because event times are not fixed, making the IV 'collapse' window shorter, sometimes less than an hour.
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Below we break it down step by step.
Step 1: Identify the type of event — earnings, macro data, or crypto-specific event
What to do: Determine what is driving the current elevated IV.
How to do it:
Case A — Earnings event: IV starts climbing 1–3 weeks before the earnings release. Once the uncertainty is resolved after the announcement, IV collapses rapidly before the next day's open (i.e., U.S. pre-market). This is the classic IV crush.
Case B — Macro data events (e.g., CPI, FOMC, NFP): These typically follow a similar pattern. Markets begin pricing in the event 1–2 days ahead, and IV drops quickly after the data is released.
Case C — Crypto-specific events (network upgrades, ETF approvals, regulatory announcements): The IV crush window in crypto is shorter. Volatility spikes before an upgrade or policy decision, and can collapse within hours or even minutes after the outcome is known.
Completion criteria: You can accurately say whether the IV spike is due to 'earnings season,' 'upcoming FOMC,' or 'crypto news.'
Key reminder: Crypto markets do not have a fixed earnings calendar like traditional finance, so the timing of IV crush is harder to predict. IV can also collapse when a catalyst event fails to generate the expected price movement or has lower impact than anticipated.
Step 2: Calculate the threshold for 'how high is high'
What to do: Use IV Rank or IV Percentile to judge whether current IV is truly 'high' and estimate when it will likely revert.
How to do it:
IV Rank = position of current IV within the high-low range over the past 52 weeks (or a chosen period). If IV Rank > 80, it indicates IV is at historically elevated levels and the probability of a crush is higher.
If IV is only fluctuating around 'normal' levels, there is no crush to speak of. You don't need to know the exact time — because it isn't high enough to crush.
Completion criteria: You know the current IV percentile — whether it is truly high or just normal fluctuation.
Step 3: Pinpoint the exact time the event resolves
What to do: Confirm when exactly the event you are watching will end.
How to do it:
Earnings events: Companies usually report after the close or before the open. Exact times can be found on the company website or financial calendars. IV crush starts the moment earnings are released, but the impact on options prices typically materializes before the next market open (around 22:30 Beijing time for U.S. stocks).
Macro data: Release times are usually fixed. For example, FOMC decisions, CPI, and NFP all have specific release times. The crush occurs immediately after the data is published.
Crypto events: Such as ETF approval results or network upgrade completion times. These often lack a fixed clock, so you need to monitor official announcements or project communication channels closely.
Completion criteria: You can circle the 'specific time when uncertainty ends' on your calendar.
Step 4: Distinguish between near-month and far-month contract crush sizes
What to do: If you hold near-month or far-month options, know that the crush affects them differently.
How to do it:
Near-month contracts (closest to expiration): Contain the highest event premium, so they get hit hardest during the crush. For large-cap stocks, near-month IV typically collapses by 30–60% after earnings.
Far-month contracts (60–90+ days out): Include less event premium, so the crush decline is much smaller than near-month.
Completion criteria: You know whether your position is near-month or far-month and which one gets hit harder by IV crush.
Step 5: If you are a seller, know when to 'close the net'
What to do: If you sold options before the event (e.g., iron condor), determine the optimal exit window.
How to do it:
The core of IV crush is 'sell ahead, close after the event.'
Typical approach: Enter short options 1–2 hours before the earnings release, then close the position at the next day's open (sometimes price changes are visible 1 hour before the open). Straddles and strangles are classic strategies, and iron condors are also popular.
Completion criteria: You have a clear 'entry-exit' time plan, not just 'waiting to collect money.'
Prerequisites
Before trading, make sure you can see 'implied volatility' or 'IV Rank' data on your platform. If no dedicated tool, you can back out IV from at-the-money option prices in the option chain.
Common failure reasons
Entering just a few hours before the earnings release: At that point, IV may already have peaked, so the premium captured is not high enough and you take on more event risk.
Reluctant to close after the event: Thinking 'if direction is right, I'll make money,' but ignoring that vega losses will eat directional gains. Even if you guess the direction correctly, IV crush can still cause a loss.
Not knowing when a crypto 'event' truly ends: Unlike earnings, crypto news often has no set release time; IV can stay elevated longer, and the crush window is fuzzier.
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Risk reminder
Capital risk: If the event outcome deviates far from expectations (e.g., earnings beat but the stock moves against you), a sold iron condor can breach strike prices, resulting in losses far exceeding the premium received.
Account risk: Liquidity may plunge after the event; you may find no counterparty to close, or face extreme slippage.
Signs you've got it right: You know whether the IV Rank of your position is above 80%, you know the exact time of the next event resolution, and you have a clear 'closing time window' plan. Next step: Place limit orders in advance for that time window; don't try to manually trade in the first minute after the open — that's the most congested moment. If you planned an iron condor, ensure you enter at least 1–2 hours before the event and evaluate at the first tradable window after the event whether the closing price meets your target profit.
