VIX vs DVOL: How Volatility Indices Work for Crypto Traders
TL;DR. The previous lesson measured what price did. VIX and DVOL measure what the options market expects it to do: the VIX for the S&P 500 and DVOL, Deribit's index, for BTC and ETH, both as annualised implied volatility over the next thirty days. They are not surveys; they are derived from premiums that traders paid, which is what gives them signal. DVOL divided by nineteen is the one-standard-deviation daily move the market is pricing, which sets the day's stop distances and expectations, and its direction of change matters more than its level. The limitation is that neither index says which way: the size of the expected move, never its sign.
Prerequisites for this lesson: Crypto market volatility (realised volatility and the square-root-of-time rule), Crypto options (premium and implied volatility). Lesson 2 of the volatility section.
Realised and implied
Realised volatility, the ATR, the band width, the standard deviation of recent closes, is yesterday's newspaper: what the market did. Implied volatility is the forecast: what the options market is pricing as likely, read from the premiums of options across strikes. Neither is more true. They measure different things, and the gap between them is information. Implied far above realised means the market is paying for a storm the surface does not yet show; the two converging means nobody expects the conditions to change.
The forecast analogy fails in one respect that matters: a weather forecast is an opinion, and an implied volatility is a price. Somebody paid that premium with money at risk. That commitment is why the index carries signal, and also why it can be wrong in the way any crowd can be wrong.
The VIX as context
The VIX, published by the CBOE, is the 30-day implied volatility of the S&P 500, computed from a strip of index options. A crypto scalper has no direct trade in it, and it is useful context because BTC and ETH have traded with meaningful correlation to risk assets in periods of institutional stress, as the correlation lesson describes. The mechanism is de-risking: when equity volatility spikes, funds hit risk limits and reduce exposure everywhere, and crypto sits at the high-risk end of most books.
Practically: a quiet VIX, below 20, says nothing about crypto. A VIX above 30 and rising raises the odds of correlation-driven moves that override local structure, and in those windows the support and resistance map and the order book are weaker anchors than usual.
DVOL
The Deribit Volatility Index is the crypto-native version, computed from the live prices of BTC (and, separately, ETH) options on Deribit across the near expiries and published in real time. Because Deribit trades the large majority of crypto options volume, DVOL is the closest thing to an authoritative implied volatility for BTC.
It is quoted as an annualised percentage: a DVOL of 60 means the options market is pricing 60% annualised volatility for the next thirty days. That number is hard to use as it stands, and the conversion is easy.
From DVOL to the expected daily move
Divide the annualised figure by the square root of 365, about 19:
one-standard-deviation daily move ≈ DVOL ÷ 19
| DVOL | Daily move (1 SD) | On BTC at $100,000 |
|---|---|---|
| 40 | 2.1% | $2,100 |
| 57 | 3.0% | $3,000 |
| 60 | 3.1% | $3,100 |
| 80 | 4.2% | $4,200 |
The figure is a probability-weighted expectation, not a forecast of the day. On about two thirds of days the actual move is smaller; on the rest it is larger, and on the rare day of a headline or a cascade it is a multiple. What it is for: calibrating the session before it starts. A DVOL of 40 and a DVOL of 80 are different markets, and a stop, a target and a position that are right in one are wrong in the other. The what is volatility lesson's table shows how the daily figure scales down to the 5-minute and 1-minute charts.
Size, not direction
The point most write-ups skip: DVOL says how large the expected move is and nothing about its sign. A high DVOL is a market paying for a big move either way. The directional lean of the options market lives in the skew, the difference between the implied volatility of puts and calls. Reading DVOL without skew is knowing a storm is coming without knowing from which side.
The direction of change
The level of DVOL is context; its rate of change is the signal.
Rising fast is the more informative direction. When DVOL jumps several points in a short window, options buyers are paying up: someone is hedging urgently or buying volatility ahead of a move they expect. That is money at risk, not sentiment.
Falling is softer. Options are getting cheaper, which usually means drift towards complacency rather than any active view. Markets can sit in low-volatility regimes for a long time, and a low DVOL says nobody is currently paying for protection, not that none will be needed.
A spike that plateaus for several sessions instead of reverting is a regime change rather than a single event: the market is paying to stay hedged because it expects conditions to remain uncertain.
Levels as orientation
Not thresholds; a description of how the environments tend to feel:
- Below 40. Quiet; the expected daily move is under 2.1%. Range conditions, breakouts more likely to fade, the narrow range fee arithmetic in force.
- 40 to 60. Active, not stressed. The standard environment for most scalping setups.
- 60 to 80. Elevated. Larger moves are being paid for; stops and size need a review against the current ATR.
- Above 80. Stress. Daily moves above 4% are priced. The environment rewards discipline and punishes carelessness, and execution quality matters more, not less.
The same level means different things in different regimes; where DVOL is going relative to the recent weeks matters more than where it is.
Term structure
Implied volatility has a shape across expiries. Deribit publishes it for each expiry, so near-term (next week) can be compared with longer-dated (three months). The usual shape is upward, longer expiries at higher implied volatility, because uncertainty accumulates with time. When the near-term is higher than the longer-dated, the market is pricing an immediate threat rather than a persistent condition: a scheduled event, an expiry week, a sharp spot move. Those inversions tend to resolve once the event passes. A flat term structure with an elevated level is one of the more reliable pictures of sustained stress rather than a single shock, and the IV crush lesson uses the two-expiry comparison to isolate what the market is paying for one event.
Where to find it
- Deribit's interface, charted beside the options chain.
- TradingView, as Deribit's DVOL index symbol.
- Options analytics services such as Laevitas and Greeks.live, which show DVOL, the term structure and the skew in one place.
Where to go from here
This is the last lesson of the volatility section. The options track continues into implied volatility as a tradeable quantity; for a scalper the next practical step is the tool that sizes every stop from the realised number.
- ATR: realised volatility per candle, the stop outside the noise and the position from it.
Related guides:
- Crypto market volatility: realised volatility and the square-root-of-time rule.
- Implied volatility and skew: the directional complement to DVOL's level.
- IV crush: event volatility isolated from two expiries.
- Funding rates: the other derivatives-market context, read alongside DVOL.
- Position sizing and risk management: the stop and size that DVOL calibrates.
- Crypto volatility trading guide: the section hub.
- Glossary: implied volatility, vol skew, ATR.
This article is educational content, not investment advice. Trading derivatives carries substantial risk, including total loss of capital. See disclaimer.