Volatility Index Node
Composite Internal Volatility Measure
Overview
Volatility Index combines ATR normalized by price (similar to VIX concept for individual stocks/markets). It represents annualized internal market volatility, making it useful for comparing volatility across different price levels and identifying market stress conditions.
Higher values indicate elevated market anxiety/volatility. This index is annualized using the 252 trading day assumption. It's particularly useful for risk assessment and deriving options pricing volatility inputs.
Formula
Parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
| period | number | 14 | ATR lookback period |
Common Use Cases
1. Market Stress Detection
Elevated VI values quickly signal when market is entering high stress/volatility regime.
2. Volatility Regime Detection
Identify volatility clusters and regime changes - crucial for Garch-type volatility forecasting.
3. VIX Alternative
For individual stocks, this provides similar concept to VIX for broader markets.
4. Risk Assessment
Use VI levels to adjust portfolio risk. Higher VI = increase hedges or reduce exposure.
Advantages & Limitations
Advantages
- •Annualized percentage view
- •Intuitive interpretation
- •Comparable across securities
- •Good for risk management
Limitations
- •Lagging due to ATR smoothing
- •Assumes 252 trading days yearly
- •Not predictive of future volatility
Tips & Best Practices
📊 Track Trending
Monitor VI direction - rising VI more important than absolute level.
⚡ Compare with Historical
Establish baseline VI for each security/market and compare current levels to it.
💰 Portfolio Hedging
When VI spikes across portfolio, increase hedges. When VI falls, reduce hedges.
⚠️ Mean Reversion Opportunities
Extreme VI values often precede normalization. Trade positions with VI reversal in mind.
Related Indicators
ATR
Base component of VI calculation
NATR
Normalized ATR for percentage comparison
Historical Volatility
Statistical volatility measure
Chaikin Volatility
Volatility rate of change indicator