Question 1

What is an IV crush and when does it hit crypto options?

Accepted Answer

An IV crush is a sudden collapse in the implied volatility priced into an option, and it hits right after a scheduled event that the market has been bracing for. In crypto the classic triggers are a spot ETF decision, a Bitcoin halving, a large token unlock or vesting cliff, a mainnet launch, an exchange listing, or a macro print like a Fed meeting or CPI release. In the days before the event, uncertainty is high, so traders bid up option premiums and implied volatility runs hot — often far above the volatility the coin actually realises day to day. The moment the event passes and the outcome is known, that uncertainty evaporates. Implied volatility snaps back down toward normal, and because an option's price is directly tied to its implied volatility through vega, every option loses value on the volatility drop alone. A front-dated at-the-money option can shed a third of its value from the IV move even if the underlying does not budge. That is the crush, and it is the single most common reason a trader buys an option, sees the price move their way, and still loses money.

Question 2

How can I lose money on a call when the price went up?

Accepted Answer

Because an option's price has three moving parts and only one of them was working for you. When you buy a call into an event, you are usually paying an inflated premium built on elevated implied volatility. After the event three things happen at once: the underlying moves — hopefully your way — which helps through delta; a day or more of time passes, which hurts through theta; and implied volatility collapses, which hurts through vega. If the volatility crush and time decay together strip out more value than your favourable price move adds back, the option is worth less than you paid even though your directional call was correct. This is why event trades have a hidden hurdle: it is not enough to be right about direction, you have to be right by more than the crush costs you. This calculator makes that hurdle explicit by splitting the profit and loss into the pure volatility component and the price component, and by solving for the exact percentage move you would need for the two to cancel and leave you at break-even.

Question 3

How is the option value calculated here?

Accepted Answer

The calculator prices the option twice with the Black-Scholes model and compares the two. The entry value uses your underlying price, strike, days to expiry and your pre-event implied volatility — the rich, elevated number the market is charging before the catalyst. The post-event value re-prices the same option after the event: the underlying is moved by the percentage you expect, the implied volatility is dropped to your post-event level, and the days to expiry are reduced by the time that elapses through the event. The difference between the two is your profit or loss per unit of the underlying. To isolate the crush, the tool also prices a third scenario that holds the price and the days fixed and only drops the volatility, which shows how much value the IV collapse alone destroyed — the pure vega loss — separate from the price move and time decay. Interest rates are set to zero, which is standard and immaterial for the short horizons and near-the-money strikes typical of event trades, so the result is driven by the three forces that actually matter around a catalyst: volatility, price and time.

Question 4

How do I actually trade around an IV crush instead of getting caught by it?

Accepted Answer

The first rule is to never be a naked option buyer into a known, scheduled event unless you expect a move much larger than the one the option is already pricing in — the calculator's break-even move tells you exactly how large that has to be. If your expected move is smaller than the break-even, you are structurally set up to lose even when you are right about direction. Traders who want to be long a catalyst usually reduce their volatility exposure by using spreads instead of single options: a vertical spread, a calendar or a broken-wing butterfly sells some of the expensive volatility back to finance the leg they are buying, so the crush that guts a single long option partly cancels between the legs. The other side of the trade is to be the seller: strategies like short strangles, iron condors and credit spreads are explicitly built to harvest the crush, collecting the inflated premium before the event and buying it back cheap after volatility collapses — a high-probability trade whose danger is the rare oversized move, not the crush. This tool is the sizing check for either side: buyers see whether their expected move clears the hurdle, and sellers see how much premium the crush is likely to hand back.

Калькулятор IV Crush

Куда ушли деньги — волатильность, цена и время

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