FRACTAL DIMENSION CHAOS OSCILLATOR Trading Guide

Last updated: July 22, 2026

The Fractal Dimension Chaos Oscillator is a quantitative technical analysis tool. Fractal Dimension Chaos Oscillator (FDCO) A custom oscillator based on Chaos Theory and John Ehlers' Fractal Dimension Index. Measures if the market is in an organized trend (FDI -> 1.0) or chaotic consolidation (FDI -> 2.0).

What does the indicator show?

  • Market Structure & Momentum: Visualizes prevailing trend directions and key reversal zones.
  • BUY / SELL Signals: Highlights confirmed entry and exit opportunities based on quantitative rules.
  • Dynamic Boundaries: Provides adaptive levels for managing trade risk and reward expectations.

Key Settings

  • Lookback Window (length): Controls the calculation period and sensitivity for market detection.
  • Smoothing Period (smooth): Controls the calculation period and sensitivity for market detection.
  • Neutral Threshold (neutralZone): Controls the calculation period and sensitivity for market detection.
  • Bull Trend (bullTrend): Controls the calculation period and sensitivity for market detection.
  • Bull Weakening (bullWeak): Controls the calculation period and sensitivity for market detection.
  • Bear Trend (bearTrend): Controls the calculation period and sensitivity for market detection.
  • Bear Weakening (bearWeak): Controls the calculation period and sensitivity for market detection.
  • Neutral (Chop) (neutral): Controls the calculation period and sensitivity for market detection.
  • Threshold Lines (levelLine): Controls the calculation period and sensitivity for market detection.
  • Zero Line (zeroLine): Controls the calculation period and sensitivity for market detection.
  • Chaos Value (fdco): Controls the calculation period and sensitivity for market detection.
  • FDI Index (fdi): Controls the calculation period and sensitivity for market detection.
  • Chaos Value (fdco): Controls the calculation period and sensitivity for market detection.
  • Is Trending Bull (isTrendingBull): Controls the calculation period and sensitivity for market detection.
  • Is Trending Bear (isTrendingBear): Controls the calculation period and sensitivity for market detection.
  • Is Choppy Market (isChop): Controls the calculation period and sensitivity for market detection.

How to use Strategy Parameters (Condition Source)

Within the Strategy Tester module, this indicator can be used both as a direct signal source and as a market-state filter.

1. Signal Events

  • isTrendingBull - Is Trending Bull event signal.
  • isTrendingBear - Is Trending Bear event signal.
  • isChop - Is Choppy Market event signal.

2. Filters and Trade Levels

  • length - Lookback Window value used for structural qualification or thresholds.
  • smooth - Smoothing Period value used for structural qualification or thresholds.
  • neutralZone - Neutral Threshold value used for structural qualification or thresholds.
  • fdco - Chaos Value value used for structural qualification or thresholds.
  • fdi - FDI Index value used for structural qualification or thresholds.
  • fdco - Chaos Value value used for structural qualification or thresholds.

Strategy Example: Enter Long when buySignal is true and trendFilter == 1, ensuring trades align with dominant momentum.

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