VSTOXX-DAX Correlation: Using Volatility as an Edge
What Is VSTOXX?
The VSTOXX index measures the implied volatility of EURO STOXX 50 options over the next 30 days. It is the European equivalent of the VIX. VSTOXX rises when market participants expect larger price swings (typically during sell-offs) and falls during calm, trending markets.
The Inverse Relationship
VSTOXX and DAX have a strong negative correlation. When DAX rises, VSTOXX typically falls, and vice versa. This relationship is not perfectly linear — VSTOXX tends to spike faster during sell-offs than it falls during rallies, creating an asymmetry that traders can exploit.
VSTOXX Regimes
| VSTOXX Level | Market Regime | DAX Implications |
|---|---|---|
| Below 15 | Very low volatility | Strong uptrend, small ranges, complacency risk |
| 15–20 | Normal volatility | Healthy market, standard ranges |
| 20–28 | Elevated volatility | Increased caution, wider stops needed |
| 28–35 | High volatility | Fear in the market, large intraday swings |
| Above 35 | Extreme volatility | Crisis mode, gap risk, reduced position size |
Using VSTOXX as a Trading Tool
1. Volatility-Adjusted Position Sizing
When VSTOXX is elevated, reduce your DAX position size proportionally. A simple formula: Normal Size × (20 / Current VSTOXX). If VSTOXX is at 30, you trade at 67% of normal size. This keeps your dollar risk constant even as ranges expand.
2. VSTOXX Divergence
When DAX makes a new high but VSTOXX does not make a corresponding new low, it suggests the rally is losing conviction. This divergence often precedes a pullback. Conversely, when DAX makes a new low but VSTOXX does not make a new high, the sell-off may be exhausting.
3. VSTOXX Term Structure
Normally, longer-dated VSTOXX futures trade at higher prices than shorter-dated ones (contango). When the term structure inverts (backwardation), it signals acute fear. Backwardation in VSTOXX is a strong signal that DAX is near a short-term bottom.
Practical Application
Check VSTOXX every morning as part of your pre-market routine. If VSTOXX has risen 10%+ overnight, expect a wider-than-normal DAX range and adjust stops accordingly. If VSTOXX is at multi-month lows, be alert for a volatility expansion event. On ECB days, VSTOXX often spikes before announcements.
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What is VSTOXX?
VSTOXX measures the implied volatility of EURO STOXX 50 options over the next 30 days. It is the European equivalent of the VIX and rises when markets expect larger price swings.
How does VSTOXX relate to DAX?
VSTOXX and DAX have a strong negative correlation. When DAX rises, VSTOXX typically falls, and vice versa. VSTOXX tends to spike faster during sell-offs than it falls during rallies.
How do I use VSTOXX for position sizing?
A simple formula: Normal Size × (20 / Current VSTOXX). If VSTOXX is at 30, you trade at 67% of normal size. This keeps your risk constant even as ranges expand.