📖William Gann
Wisdom for Investing and Life
Investment principles apply to life too.
The principles that make you a great investor — patience, discipline, humility, and continuous learning — are the same principles that lead to a great life.
🏠 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：Character virtues drive success in investing and life.
AI Deep Analysis
Get personalized insights and practical guidance through AI conversation
❓ 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
Pre-Crash Dow Trend Reversal (1929)
Using Gann’s trend definition, a series of lower tops and lower bottoms on the Dow in late 1929 signaled a primary downtrend before the October crash.
✨ Outcome：An investor respecting the new downtrend would have exited early, avoiding the bulk of the crash losses.
2
Dot-Com Bubble Peak (2000)
The NASDAQ in early 2000 broke its prior swing lows, forming a clear downtrend per Gann’s rule of lower highs and lower lows after a parabolic rise.
✨ Outcome：Investors who sold when the trend reversed sidestepped years of heavy tech stock drawdowns.
See how masters handle real scenarios?
30 real investment dilemmas answered by legendary investors
Explore Scenarios →