Educational content, not investment advice. Crypto-asset values fluctuate.

Modulis 5 · Options
9/12

Implied Volatility in Practice

Video · 2 min.
Implied volatility — the price of waves

Tony paid $17.60 for a Put, and a day later it is worth $12.40 even though SOL did not move. Implied volatility is the height of the waves: the bigger they are, the pricier the insurance. You'll see IV zones for SOL, why IV crush happens after big news, and how to tell whether today is expensive.

Narrated, with light music
The full lesson with numbers and rules is below.
Watch on YouTube

What is Implied Volatility (IV)?

Implied Volatility (IV) — the market's expectation of how much the price will move over a given period. It is not a forecast of direction. It is only a measure of the size of the move.

A simple analogy: ocean waves

IV is measured in percent:

IVWhat it means annuallyWhat it means monthly
20%Price will move ~20%~5.8% per month
50%Price will move ~50%~14.4% per month
74%Price will move ~74%~21.4% per month
120%Price will move ~120%~34.6% per month

SOL IV has historically ranged 45-80%; as of this writing (2026-09) Deribit ATM SOL IV is around 50%. At 50% the market expects roughly 14% of price movement per month; at 74%, about 21%. Our example position (Long Put $90) was bought at 74% — that's an example of a higher-IV regime, not today's level. Always check the IV level against Deribit's ATM mark IV on the day, not against the number in this lesson: the regime shifts over months.

Why are crypto options more expensive than stock options?

Because crypto moves around a lot more:

AssetVolatility (IV)Put price (~120d, near ATM)Insurance cost %
S&P 500~15%~3.4% of priceCheap
Apple stock~25%~5.7% of priceReasonable
SOL (example regime)~74%~17% of priceVery expensive
SOL (2026-09)~50%~12.7% of priceExpensive
BTC~55%~12.6% of priceModerate

How this is calculated: a near-ATM Put costs roughly 0.4 × IV × √T × price. Over 120 days (√T ≈ 0.57) and 74% IV that gives ~17% of the asset's price — so protecting 100 SOL for 120 days costs not a few percent, but ~17% of the portfolio's value.

SOL protection is ~3x more expensive than Apple stock protection, and even in today's calmer regime (~50% IV) still ~2x. This is exactly why we need Put Spread and Covered Call — to bring the cost down.

IV Crush — what is it?

IV Crush — a sudden drop in volatility after a major event.

Before the event: nobody knows what will happen. Uncertainty is high. IV is high. Options are expensive. After the event: everything is clear. IV drops. Options get cheaper.

The numbers below are for a 90-day $90 strike Put with SOL at $88 (Black-Scholes estimate, illustration):

StageIVPut price
2 weeks before the news85%$15.90
1 day before95%$17.60
After the news65%$12.40
1 week after70%$13.30

What this means for you:

When is the best time to buy protection?

The rule is simple: buy when it's calm. Don't buy during panic.

SOL IV levelMarket moodWhat it means for insurance cost
< 45%Very calmCheapest time to insure
45-60%Normal 2026 level (2026-09: ~50%)Price close to today's norm
60-80%Elevated volatilityInsurance costs more than usual (our example — 74%)
80-100%StressInsurance is expensive
> 100%PanicMost expensive — you pay double for the same strike

These zones are relative, not permanent constants. The practical rule: compare today's Deribit ATM mark IV against the last 30 days' average for the same instrument. Lower than that today means protection is relatively cheap; higher means expensive. Absolute numbers drift over a few years.

What this looks like during a roll: if the Put roll timing coincides with high IV:

  1. The old Put sells for more (high IV also lifts its remaining value)
  2. After waiting a few days for IV to drop, the new Put costs less
  3. But between these two steps, the portfolio is left without protection

Waiting without protection is risky. If IV is high because of a real crisis, the price can keep falling. Never go more than 3-5 days without Put protection.

DVOL — crypto's "fear index"

Traditional markets have VIX (the S&P 500 fear index — it measures stock market volatility). In crypto, Deribitad has DVOL (the Deribit Volatility index — crypto's equivalent):

IV across different time horizons

IV differs depending on the option's duration:

We write these relative to the 30-day ATM level (in 2026-09 that was ~51%), because absolute IV drifts from year to year:

DurationIV vs. 30d ATMWhy
7 days+5 ... +25 pts (sometimes more)Short-term — very sensitive to news
30 daysreference point (2026-09: ~51%)The most common horizon (usually what people mean by "SOL IV")
90 days−1 ... −3 ptsClose to our zone
120 days−1 ... −5 pts (2026-09: ~50%)Our strategy's zone
180 days−2 ... −6 ptsLowest IV

We use 120 days — the sweet spot where IV is already more normal, but there's still enough liquidity.

IV and the cost of protection

Our Put Spread's cost depends directly on IV:

The price table below is per unit, while the net is calculated with our actual quantities: Long Put ×200, Short Put ×100 and ×100.

Prices calculated with Black-Scholes over a 120-day horizon with SOL at $88:

IV levelLong Put $90 (×200)Short Put $65 (×100)Short Put $60 (×100)Net spread cost
50% (2026-09 level)-$11.20+$1.60+$0.85-$1,995
55%-$12.20+$2.15+$1.25-$2,100
70%-$15.20+$3.90+$2.60-$2,390
74% (example position)-$16.00+$4.40+$3.05-$2,455
90%-$19.15+$6.60+$4.90-$2,680

At 74% this is exactly our example position: -$16.00 × 200 + $4.40 × 100 + $3.05 × 100 = -$3,200 + $440 + $305 = -$2,455.

What the table shows: the higher the IV, the more expensive the net Put Spread. That's because the $90 Put we're long (almost ATM) reacts more strongly to IV than the $65 and $60 Puts we're short (far OTM). Short Put premium grows, but it doesn't offset the pricier Long Put leg. High IV doesn't make protection free — it makes it more expensive. But note the scale: the net cost moves far more slowly than the Long Put leg alone (from $1,995 to $2,680 while IV jumps from 50% to 90%) — which is precisely why the spread structure is used.

Once you understand IV, you can see for yourself when protection is cheap and when it's overheated — and pick your timing to buy the way experienced traders do.

Module summary

What we've covered in this module so far:

  1. Option anatomy — Call/Put, strike, expiry, premium
  2. Moneyness zones — ITM/ATM/OTM, intrinsic vs. time value
  3. The Greeks — Delta, Theta, Gamma, Vega
  4. Deribit — where and how to trade options
  5. Protective Put — portfolio protection
  6. Put Spread — cheaper protection
  7. Covered Call — income from selling
  8. Managing the cycle — the 120-day cycle, Put rolls
  9. Implied Volatility — how volatility affects prices

Two lessons remain in this module: 10. Payoff Diagrams and 11. Collar.

Platform in development

Once the DeFi Risk OS platform launches, you will be able to track your options Greeks there

For now, all of this is done by hand, as shown in the lesson.

Next: Payoff diagrams — how to see a position's floor, ceiling, and breakeven point in a single chart.

Quick check
What does Implied Volatility (IV) measure?
Practice task
0 / 5
Measure the market's fear (IV)

IV is the market's mood thermometer. This paper exercise (~15 min) will teach you to read it in a live market. No trading — just observation.

We're learning to read IV and DVOL, NOT to trade. DON'T BUY ANYTHING — the decision about timing stays on paper only.

This is learning, not investing — use only small amounts you treat as tuition.

You just read live IV yourself, compared short and long expiry, and evaluated DVOL — a skill most crypto holders never pick up.

Mark as read

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