📖William Gann
Management Evaluation
Judge management by actions, not words.
Evaluate management by their actions, not their words. Look for a track record of capital allocation, shareholder communication, and aligned incentives.
🏠 Everyday Analogy
📖 Core Interpretation
In Management Evaluation, W.D. Gann focuses on the gap between price and value. Returns come from paying less than what a business is worth, not from guessing short-term market moves.
💎 Key Insight：Track record reveals true management quality.
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❓ Why It Matters
Ignoring valuation turns even good companies into poor investments. Overpaying compresses future returns and leaves little margin when assumptions are wrong.
🎯 How to Practice
Estimate intrinsic value with conservative assumptions, set clear buy ranges, and act only when price offers a meaningful discount with acceptable downside.
⚠️ Common Pitfalls
Confusing a low price with true cheapness
Using one metric without business context
Overly optimistic assumptions that erase margin of safety
📚 Case Studies
1
Post-Crash Accumulation (1932)
After the 1929–1932 bear market, Gann used square-of-9 time and price levels to signal a long-term bottom in the Dow Jones.
✨ Outcome：He accumulated quality stocks near the lows and benefited from the ensuing multi‑year recovery rally.
2
Railroad Stock Forecast (1909)
Gann reportedly applied Gann Angles to predict turning points in several railroad stocks, including Union Pacific, correctly forecasting price reversals based on angle support and resistance from key swing lows.
✨ Outcome：Executed multiple short-term trades with favorable risk-reward, compounding returns over several months.
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