The most typical case I have seen is someone buying a call option. The coin price did go up, but at expiration they still lost money. The reason comes down to four words: volatility collapsed (IV crush).
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Option price is not only determined by the direction of the underlying asset. Changes in implied volatility (IV) also affect the price. When IV drops, option prices get compressed, which can directly eat up directional gains.
Step 1: First understand — why does falling IV make options cheaper
Implied volatility (IV) is the market's expectation of future price movement. It is not a directional indicator. It is the pricing of "uncertainty".
Higher IV → options are more expensive (because uncertainty is strong and tail risk gets priced in)
Lower IV → options are cheaper
When IV drops, option prices shrink even if the spot price stays the same. This risk is called Vega risk — option prices are very sensitive to changes in IV.
Step 2: Real trade simulation — "Direction was right, money was gone"
Let's use specific numbers to explain this logic:
| Stage | Scenario |
|---|---|
| Before the event | You buy a call option before a major event (such as the Fed meeting), IV = 60%, premium $1.27 |
| After the event | The underlying price rises 2% — direction was right, but the event is over, uncertainty disappears, and IV crashes from 60% to 35% |
Let's break down this trade:
Price increase of 2% ≈ contributes about +$0.78 in gains
One day of time decay (Theta) ≈ deducts about -$0.33
IV crash (Vega loss) ≈ deducts about -$0.88
Final result: even though the direction was right, this option still lost about 34%.
The core logic of IV Crush: before major events (earnings, FOMC, CPI data), the market prices "the unknown" very highly, so IV gets pushed up. After the event lands, uncertainty drops to zero and IV falls quickly — this "uncertainty premium" evaporates from the option price.
Step 3: Why does this happen?
Long-term data reveals a more fundamental reason. An analysis of the BTC options market from 2021 to 2025 shows that 90-day option implied volatility has averaged about 5.8 percentage points higher than realized volatility.
In other words, option buyers as a whole have been paying a premium for "volatility that never came" over the long term. To actually make a profit, you not only need to bet the direction correctly, you also need realized volatility to exceed the level priced into current IV — this is much harder than simply getting the direction right.
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Step 4: What should option buyers do?
Do not buy naked options when IV is high: IV is often pushed very high before major events. Chasing options at this point means paying an expensive "uncertainty premium."
Use spread strategies instead of naked buys: Use bull call spreads or bear put spreads. The premium from the sold leg helps offset the Vega risk of the bought leg, reducing sensitivity to IV changes.
Pay attention to the "sell the news" window after events: IV Crush is bad for buyers but an opportunity for sellers. If IV collapses after the event, previously sold options can be closed at a lower price for a profit.
How to check before you trade: the next time before buying an option, first look at where the IV for that expiration sits. If IV is already significantly above its historical average (IV Rank 70%), consider a spread strategy instead of a naked buy. If you have already bought, prepare yourself mentally for "IV Crush" before the event lands — do not just bet on direction.
