Ulcer Index Node
Downside Volatility & Pain Measurement
Ulcer Index measures the downside volatility and duration of drawdowns, focusing on the "pain" of losing trades. Unlike standard deviation that treats upside and downside equally, Ulcer Index penalizes extended drawdown periods. It provides a more accurate risk measure for portfolios where avoiding losses is prioritized over capturing upside.
Formula
Parameters
| Parameter | Default |
|---|---|
| period | 14 |
Use Cases
1. Risk-Averse Portfolio Management
Evaluate downside pain vs potential gain in trading strategies.
2. Drawdown Analysis
Assess cumulative pain from extended losing streaks and recovery difficulty.
3. Strategy Comparison
Compare strategies by pain/return ratio rather than Sharpe alone.
4. Position Sizing Adjustment
Reduce size during high Ulcer Index periods to limit drawdown pain.
Advantages & Limitations
Advantages
- • Focuses on downside pain
- • Penalizes extended drawdowns
- • Better for loss-averse traders
- • Holistic risk assessment
Limitations
- • Less widely understood
- • Requires full history for comparison
- • Slow to recover from drawdowns
Tips & Best Practices
📊 Compare Ratios
Use Pain/Return ratio: lower is better (less pain for same return).
⚡ Baseline Assessment
Establish UI baseline under normal market conditions for your strategy.
💰 Monitor Drawdowns
Rising UI often precedes further drawdown; use as early warning.
⚠️ Don't Ignore Upside
Use UI with return metrics; low pain is meaningless with no profit.
Related Indicators
Standard Deviation
Traditional volatility; treats up/down equally
ATR
Dollar-based volatility measure
Drawdown Tracker
Complements UI with visual drawdown analysis
Range Volatility
Comparison upside volatility measure