Direct Answer
A VIX futures curve in which the nearer contract is priced below the next one, so the curve slopes upward with maturity. It is the normal state in calm markets and the opposite of backwardation. Contango typically accompanies calm markets and implies traders expect volatility to rise toward its long-term average.
VIX Futures Contango: Formula, Meaning, Signals, Examples and How to Use It
How Is VIX Futures Contango Calculated?
A VIX futures curve in which the nearer contract is priced below the next one, so the curve slopes upward with maturity. It is the normal state in calm markets and the opposite of backwardation.
Formula: Contango % = (second-month VIX future / front-month VIX future - 1) x 100
Inputs:
- Front-month VIX futures price
- Second-month VIX futures price
Worked example. If the front-month VIX future is 16.0 and the second month is 17.2, the curve is in contango by 7.5%. The inputs are illustrative numbers, not market data.
Reading it. Contango typically accompanies calm markets and implies traders expect volatility to rise toward its long-term average. Steeper contango is often read as greater complacency. It is also the source of the roll cost that erodes long volatility products.
Limits. Contango is the market's usual shape and is not a sign of safety. The percentage spread depends on days to expiry of each contract, so slopes at different times are not strictly comparable.
What is VIX Futures Contango?
A VIX futures curve in which the nearer contract is priced below the next one, so the curve slopes upward with maturity. It is the normal state in calm markets and the opposite of backwardation.
How to use VIX Futures Contango
Contango typically accompanies calm markets and implies traders expect volatility to rise toward its long-term average. Steeper contango is often read as greater complacency. It is also the source of the roll cost that erodes long volatility products. A reading alone is never a buy or sell signal; it needs context from price structure, volume, volatility and the broader market regime.
Strengths
- Expressing the second contract relative to the first gives a percentage slope that is easy to compare across dates.
- Only two published futures prices are needed, so the slope can be computed from settlement data.
- Reproducible when the formula and data convention are fixed.
Weaknesses and limitations
- The slope is measured between two fixed month contracts, so it can jump when the front contract expires and the pair changes.
- A narrow contango and a steep one are both called contango, so the sign alone leaves the degree unspecified.
- Correlated indicators can create false confidence by repeating the same underlying information.
Editorial and risk note
This page is educational content, not individualized investment advice. It should not imply guaranteed prediction, accuracy or outperformance.
Frequently Asked Questions
Is VIX Futures Contango a buy or sell signal?
No. Contango typically accompanies calm markets and implies traders expect volatility to rise toward its long-term average. Contango is the market's usual shape and is not a sign of safety. A trade built on it still needs a trigger, an invalidation rule, a position size and realistic execution assumptions.
What is the best setting for VIX Futures Contango?
VIX Futures Contango is computed from front-month VIX futures price; second-month VIX futures price, so the choices that matter are the data convention and the window it is read over. Test those across instruments, regimes and out-of-sample periods instead of fitting one historical winner.
Can VIX Futures Contango be used by itself?
Contango is the market's usual shape and is not a sign of safety. The percentage spread depends on days to expiry of each contract, so slopes at different times are not strictly comparable. For that reason it is read next to measures of direction, participation, valuation, liquidity and risk, not alone.
Does VIX Futures Contango work on every timeframe?
The calculation (Contango % = (second-month VIX future / front-month VIX future - 1) x 100) can be run on any bar size, but behavior is not portable: a reading on a five-minute chart describes a very different market window from the same reading on a daily chart. Validate the exact timeframe before relying on it.
Why does VIX Futures Contango give false signals?
The slope is measured between two fixed month contracts, so it can jump when the front contract expires and the pair changes. A narrow contango and a steep one are both called contango, so the sign alone leaves the degree unspecified. Lag, noise and regime changes add to this, because market participants react to new information after the reading is calculated.
How should VIX Futures Contango be backtested?
Rebuild VIX Futures Contango from front-month VIX futures price using point-in-time data, write the rules before testing, include delisted securities where relevant, model realistic fills and costs, reserve a validation sample and compare with a simpler baseline.