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ADXcellence: Power Trend Strategies

by Charles B. Schaap (2006)

Quick summary -- an in-depth PhD-level extended summary (10-30 pages) for this book is coming soon.

ADXcellence: Power Trend Strategies

By Charles B. Schaap

Quick Summary

A comprehensive guide to trend trading using the Average Directional Index (ADX) and directional movement indicators (+DI and -DI). Schaap presents detailed strategies for identifying trend strength, timing entries during trend acceleration, managing positions through trend maturity, and exiting before trend exhaustion. This PDF was image-based and full text could not be extracted.

Executive Summary

NOTE: This book's PDF is image-based (scanned) and the text content could not be fully extracted using text extraction tools. The following summary is based on the title, catalog metadata, and publicly available information about the book's content.

"ADXcellence" by Charles Schaap is a detailed guide to using the ADX indicator system -- developed by J. Welles Wilder Jr. in his 1978 book "New Concepts in Technical Trading Systems" -- for trend identification, entry timing, and exit strategies. The ADX measures trend strength regardless of direction, with readings above 25 typically indicating a strong trend and below 20 indicating a weak or ranging market. The directional indicators (+DI and -DI) measure the direction of the trend. Schaap's contribution is the development of specific trading setups based on the interaction between ADX, +DI, and -DI, including "power trend" patterns where ADX rises above both directional indicators, signaling an unusually strong trend environment.

Core Thesis

The ADX indicator system provides a reliable framework for measuring trend strength and identifying the most profitable trending environments. By focusing exclusively on markets exhibiting strong directional movement (high ADX readings with clear DI separation), traders can dramatically improve their win rates and reward-to-risk ratios compared to trading in all market conditions indiscriminately.

Key Concepts and Frameworks

  1. ADX Interpretation -- ADX below 20 signals a weak or non-trending market (avoid trend-following strategies); ADX between 20-25 signals an emerging trend (prepare to enter); ADX above 25 signals a strong trend (deploy trend-following strategies); ADX above 40 signals an extreme trend (consider profit-taking).
  2. Directional Indicators (+DI/-DI) -- +DI above -DI indicates bullish directional movement; -DI above +DI indicates bearish directional movement. Crossovers of the DI lines generate initial trend signals.
  3. Power Trend Setups -- Specific configurations where ADX rises sharply while the dominant DI expands its lead over the non-dominant DI, indicating trend acceleration and high-probability trading conditions.
  4. ADX Turning Points -- Reversals in the ADX itself signal changes in trend momentum. A declining ADX after a peak signals trend deceleration, warning of potential consolidation or reversal.
  5. Trend Maturity and Exhaustion -- Using ADX patterns to identify when a trend is aging and approaching exhaustion, enabling timely exits before mean-reversion forces take hold.

Practical Applications for Traders

  1. Filter all trend-following strategies through ADX -- only deploy them when ADX is above 20 and rising.
  2. Use DI crossovers for initial trend identification and ADX level for confirmation of trend strength.
  3. Scale into positions as ADX rises and the power trend develops; begin scaling out when ADX turns down from elevated levels.
  4. Avoid counter-trend trades when ADX is above 25 -- the trend-following environment dominates.
  5. Switch to range-bound strategies (oscillators, mean reversion) when ADX is below 20.

Critical Assessment

Strengths

  • Provides a systematic, indicator-based framework for trend trading
  • The focus on trading only in confirmed trending environments helps avoid the most costly trades (fading strong trends)
  • Builds on Wilder's well-established indicator system with practical enhancements
  • Applicable across timeframes and markets

Limitations

  • The PDF was image-based and could not be fully extracted for detailed analysis
  • ADX is a lagging indicator by nature, meaning signals occur after trend moves are already underway
  • Limited evidence of long-term statistical backtesting
  • Single-indicator dependency may oversimplify complex market dynamics

Conclusion

"ADXcellence" represents a focused, single-indicator approach to trend trading that has merit in its simplicity and systematic nature. The ADX system's ability to measure trend strength independently of direction provides a valuable filter for trend-following strategies, and Schaap's power trend setups offer specific, actionable trading conditions. While the inability to extract the full PDF text limits this summary's depth, the ADX framework itself is well-established in technical analysis and provides a reasonable foundation for systematic trend trading.