📖William Gann
Systematic Investment Approach
A systematic approach ensures consistent investing.
A systematic approach to investing removes emotion and ensures consistency. Document your process, follow your rules, and review regularly.
🏠 Everyday Analogy
📖 Core Interpretation
W.D. Gann advocates a repeatable process: define criteria, execute consistently, and review decisions against evidence. Process quality drives outcome consistency.
💎 Key Insight：Systematic processes outperform ad hoc decisions.
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❓ Why It Matters
Without process, there is no reliable feedback loop. Structured execution and review improve decision quality over time.
🎯 How to Practice
Run a decision loop of research, thesis, execution, and post-mortem; document assumptions and update playbooks with evidence, not hindsight bias.
⚠️ Common Pitfalls
Having opinions without execution criteria
Reviewing outcomes but not decisions
Abandoning rules during volatility spikes
📚 Case Studies
1
Accumulation After Great Depression Low (1932)
Gann applied Master Charts to the 1932 bottom, noting price-time balance and support zones in leading industrial stocks and the Dow after massive liquidation.
✨ Outcome：Gradual accumulation around identified support led to substantial gains as the 1930s recovery rally unfolded.
2
Riding Out the 1929 Crash (1929)
An investor following Gann’s discipline avoids margin, holds quality rails and industrials through the 1929–32 collapse instead of panic selling.
✨ Outcome：Capital draws down heavily but positions are preserved, allowing recovery and profit as markets rebound in the mid‑1930s.
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