Market Analysis · Sep 13, 2026
Crypto Volatility Index: Live Levels, DVOL, BVIV and How to Read Them
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A practical guide to crypto implied volatility: how DVOL, BVIV and EVIV are built, what their levels mean, and why different venues produce different readings.
A crypto volatility index turns the options market into a single number: how much price movement traders are collectively paying to be protected against over the next thirty days.
It is often called the crypto VIX, and the comparison is fair because the maths is borrowed directly. What it is not is a direction signal. A volatility index rising tells you the market expects bigger moves. It says nothing about which way.
The one distinction that matters
Before anything else, there are two completely different things called volatility, and mixing them up is the source of most confusion on this topic.
Realized volatility is backward-looking. It measures how much price actually moved over a past window. It is a calculation on price history, and it requires no options market to exist.
Implied volatility is forward-looking. It is extracted from what people are currently paying for options. If traders are bidding up protection, implied volatility rises, whether or not anything has happened to price yet.
Every index in this article is an implied volatility index. That is what makes them interesting: they are one of the few genuinely forward-looking measures in crypto, as opposed to the sentiment and breadth gauges that describe what already happened.
The gap between the two is itself a signal. When implied sits well above realized, options are expensive relative to what the market has actually been doing, and someone is paying up for insurance. When implied sits below realized, protection is cheap relative to recent reality.
How the number is built
The standard construction follows the VIX methodology, adapted for a market that never closes.
Deribit's DVOL, launched in 2021, is the clearest published example. It selects the two option expiries closest to thirty days out, one on either side. It prices each instrument using the market depth of bids and asks rather than last-traded prices. It discards in-the-money options and far out-of-the-money ones with a delta below 5%. Then it applies a variance-swap calculation and interpolates between the two expiries to produce a constant thirty-day figure.
Three design decisions in there are worth pulling out, because they explain why different indices disagree.
Using quotes, not trades. Crypto options are thin at many strikes. A last-traded price might be hours old. Building from live bid-ask depth gives a current picture at the cost of depending on market makers being present.
Discarding the extremes. Deep in-the-money options barely carry volatility information, and far out-of-the-money ones have prices dominated by noise. Where exactly you draw those cutoffs changes the answer.
Constant thirty days. No option expires exactly thirty days out at all times, so the index interpolates between two that bracket it. Different interpolation choices produce different numbers from identical inputs.
BitVol, built by T3 Index in partnership with LedgerX, takes a different route to the same destination, backing implied volatility out of tradable Bitcoin option prices using the Black-Scholes formula.
The indices worth knowing
The field has expanded considerably. Three years ago there was effectively one number; now there are several, and the fragmentation itself is the story.
| Index | Provider | Covers | Notes |
|---|---|---|---|
| DVOL | Deribit | BTC, ETH | Launched 2021, VIX-style variance swap method, has tradable futures |
| BVIV | Volmex | BTC | 30-day IV from option quotes across leading venues |
| EVIV | Volmex | ETH | The ether counterpart to BVIV |
| BVIV-US | Volmex | BTC via IBIT | Implied vol on US-listed bitcoin ETF options |
| BitVol | T3 Index / LedgerX | BTC | Black-Scholes derivation from tradable option prices |
| BITVX | Cboe | BTC | Exchange-operated benchmark |
| BVX | CME | BTC | Exchange-operated benchmark |
| CVI | Decentralised | Crypto | On-chain index using Chainlink oracles, built for DeFi |
Why there are suddenly several
The proliferation is not duplication. Each index measures the volatility of a different market, and those markets have genuinely diverged.
The clearest example is the spread between BVIV and BVIV-US. BVIV is built from offshore option venues. BVIV-US is built from options on IBIT, the US-listed bitcoin ETF. Those are two separate pools of participants with different regulatory constraints, different hedging needs and different costs of capital. The spread between them has run around five points.
Five points of implied volatility is not a rounding error. It means the offshore market and the US regulated market hold measurably different views about the next thirty days, and neither is wrong about its own market.
This is the same lesson that shows up everywhere in crypto benchmarking, in a new place: the number you quote should be the number for the market you actually trade in. Someone hedging an IBIT position with US-listed options and watching an offshore volatility index is looking at the wrong instrument.
Reading the level
Raw volatility levels mean little without context, and the context is history rather than intuition.
IV Rank places the current reading between its lowest and highest values over a lookback period, usually a year. A rank of 10 means implied volatility is near the bottom of its annual range.
IV Percentile measures what share of days over the lookback period had a lower reading. These two are frequently confused and they answer different questions: rank is about position within a range, percentile is about frequency.
Both exist because the absolute number is not comparable across regimes. Bitcoin's DVOL spiking from 37 to above 44 during the January 2026 selloff was a meaningful move. Bitcoin implied volatility falling to a nine-month low of 36.11 on the Volmex index in May 2026 was meaningful in the opposite direction. Neither number tells you much in isolation, but each tells you a lot against its own recent range.
Crypto levels are not equity levels. An implied volatility reading in the thirties would be extreme distress in equity index options. In bitcoin it is a quiet market. Anyone importing intuitions from the VIX will misread every crypto volatility print they see.
What a volatility index cannot tell you
Four limits, all structural.
It has no direction. Volatility rises before crashes and before violent rallies. A high reading means "expect movement," and the sign is not in the data.
It is thirty days, always. The standard construction is a fixed horizon. Whatever the market expects over the next week or the next six months is a different question requiring a different instrument, which is what the term structure of options is for.
It reflects one venue's market. Every index is built from a specific set of option venues. It measures the expectations of the participants trading there, which is not necessarily the market as a whole.
It is mostly bitcoin. Ether has EVIV and the DVOL family. Beyond those two assets, liquid options markets barely exist, so there is no meaningful volatility index for the rest of the market. If you hold a diversified crypto portfolio, no volatility index describes it.
Using it alongside the other gauges
Volatility indices fill a specific gap in the standard set of crypto market indicators, and it helps to see where.
Versus the Fear and Greed Index. Fear and Greed includes volatility as an input, comparing current levels against 30-day and 90-day averages, but it is a composite that mixes in momentum, social media, dominance and search interest. A dedicated volatility index is one clean measurement. More importantly, Fear and Greed is backward-looking across all its components. Implied volatility is not.
Versus bitcoin dominance. Dominance describes market structure, volatility describes expected turbulence. High dominance with low implied volatility describes a calm, concentrated market. High dominance with rising implied volatility describes a defensive one bracing for something.
Versus a broad index. CI100 includes inverse 7-day realized volatility as a 10% factor in its weighting, which damps the influence of constituents currently in a violent repricing. That is realized rather than implied volatility, and it operates inside the index rather than alongside it, but the underlying logic is the same: volatility is information about how much confidence to place in a price.
Volatility is now tradable
Worth knowing, because it changes what these indices are.
DVOL has futures. Volmex indices trade as perpetuals on Bitfinex with up to 20x leverage, on-chain through gTrade with up to 100x on Base and Arbitrum, and since January 2026 they settle Polymarket prediction markets on BTC and ETH volatility.
An index with derivatives attached stops being purely a measurement and becomes infrastructure. It also means the index level now reflects positioning in the index itself, not only in the underlying options, which is a well-documented feedback loop in equity volatility markets and a young one here.
Frequently asked questions
Is there a crypto VIX? Several. DVOL from Deribit is the most frequently cited, with Volmex's BVIV widely referenced by financial media. Cboe and CME both operate their own bitcoin volatility benchmarks. There is no single canonical one.
What is a high crypto volatility reading? Judge it against the index's own recent range using IV Rank or IV Percentile rather than against an absolute threshold. Crypto implied volatility routinely sits at levels that would signal crisis in equity markets.
Does high volatility mean prices will fall? No. Volatility indices are directionless. They rise ahead of large moves in either direction.
Why do two volatility indices show different numbers? Different option venues, different strike filtering, different interpolation between expiries. The offshore and US ETF-based bitcoin readings have run roughly five points apart, and both are correct for their own market.
Is there a volatility index for altcoins? Not in any meaningful sense. Liquid options markets exist for bitcoin and ether. Everything else lacks the option depth an implied volatility index requires.
Bottom line
A crypto volatility index is the closest thing this market has to a forward-looking indicator. Everything else on a typical dashboard, including sentiment gauges and breadth counts, describes what already happened. Implied volatility describes what people are currently paying to be protected from.
Read it against its own history rather than against an absolute level. Know which venue's market your index measures, because offshore and US readings differ by more than most people assume. And never read direction into it, because there is none in there.
Live index levels, dominance and breadth are on the indices page.
Cryptoindex.ai is not affiliated with Deribit, Volmex, T3 Index, Cboe or CME. Volatility index levels referenced here are published by their respective providers. Nothing on this page is investment advice.