📖John Neff
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
John Neff 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
Cyclicals After Recession Fears (1990)
During early-1990s slowdown, Neff accumulated beaten‑down cyclical stocks while many investors fled to safety, focusing on solid balance sheets and dividend support.
✨ Outcome：As the economy recovered, these holdings outperformed the market over subsequent years, rewarding long‑term patience.
2
Oil Shock Recession (1973)
Neff bought undervalued cyclical stocks hit by 1973–74 bear market, emphasizing low P/E and strong cash flows despite recession fears.
✨ Outcome：Portfolio declined less than market and rebounded strongly as earnings normalized, demonstrating focus on downside protection via valuation.
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