OPEN-SOURCE SCRIPT
Mongoose Unified Volatility Index (UVI)

The Mongoose Unified Volatility Index (UVI) combines multiple volatility measures into a single normalized framework, helping traders track the full volatility cycle at a glance.
Methodology
UVI blends the following components:
Bollinger Band Width%
ATR% (Average True Range)
Historical Volatility (close-to-close)
Parkinson Volatility (high-low log range)
Donchian Width%
TR% (True Range percent)
Each input is normalized into a 0–100 scale and weighted. A smoothed EMA acts as a trend filter. Adaptive percentiles define Quiet / Neutral / Active regimes, making UVI responsive across assets and timeframes.
Features
Composite Line (UVI) with dynamic coloring
Green = volatility expanding above EMA
Red = volatility decaying below EMA
EMA Baseline (white) for context
Regime Shading (Quiet, Neutral, Active) based on adaptive percentiles
Expansion Signals (Exp Up / Exp Dn) when volatility crosses EMA around squeeze conditions
Compact Stats Table (top-right) showing UVI, Percentile, Squeeze state, and Regime
How to Use
Quiet → Exp Up: Prime breakout setups. Market energy igniting.
Active → Exp Dn: Trend exhaustion. Manage risk or fade extremes.
Neutral Regime: Mid-volatility, expect chop and tactical swings.
Gradient Fill: Quick bias check — green favors trend trades, red favors patience.
UVI is best used as a volatility state detector to time entries/exits around compressions and expansions, rather than a standalone buy/sell tool.
Methodology
UVI blends the following components:
Bollinger Band Width%
ATR% (Average True Range)
Historical Volatility (close-to-close)
Parkinson Volatility (high-low log range)
Donchian Width%
TR% (True Range percent)
Each input is normalized into a 0–100 scale and weighted. A smoothed EMA acts as a trend filter. Adaptive percentiles define Quiet / Neutral / Active regimes, making UVI responsive across assets and timeframes.
Features
Composite Line (UVI) with dynamic coloring
Green = volatility expanding above EMA
Red = volatility decaying below EMA
EMA Baseline (white) for context
Regime Shading (Quiet, Neutral, Active) based on adaptive percentiles
Expansion Signals (Exp Up / Exp Dn) when volatility crosses EMA around squeeze conditions
Compact Stats Table (top-right) showing UVI, Percentile, Squeeze state, and Regime
How to Use
Quiet → Exp Up: Prime breakout setups. Market energy igniting.
Active → Exp Dn: Trend exhaustion. Manage risk or fade extremes.
Neutral Regime: Mid-volatility, expect chop and tactical swings.
Gradient Fill: Quick bias check — green favors trend trades, red favors patience.
UVI is best used as a volatility state detector to time entries/exits around compressions and expansions, rather than a standalone buy/sell tool.
Script open-source
Dans l'esprit de TradingView, le créateur de ce script l'a rendu open-source, afin que les traders puissent examiner et vérifier sa fonctionnalité. Bravo à l'auteur! Vous pouvez l'utiliser gratuitement, mais n'oubliez pas que la republication du code est soumise à nos Règles.
TheRealMongoose
Clause de non-responsabilité
Les informations et les publications ne sont pas destinées à être, et ne constituent pas, des conseils ou des recommandations en matière de finance, d'investissement, de trading ou d'autres types de conseils fournis ou approuvés par TradingView. Pour en savoir plus, consultez les Conditions d'utilisation.
Script open-source
Dans l'esprit de TradingView, le créateur de ce script l'a rendu open-source, afin que les traders puissent examiner et vérifier sa fonctionnalité. Bravo à l'auteur! Vous pouvez l'utiliser gratuitement, mais n'oubliez pas que la republication du code est soumise à nos Règles.
TheRealMongoose
Clause de non-responsabilité
Les informations et les publications ne sont pas destinées à être, et ne constituent pas, des conseils ou des recommandations en matière de finance, d'investissement, de trading ou d'autres types de conseils fournis ou approuvés par TradingView. Pour en savoir plus, consultez les Conditions d'utilisation.