📖Julian Robertson
Sell Discipline Rules
Follow pre-defined sell criteria without emotion.
Have clear, pre-defined sell criteria. Sell when: your thesis is broken, valuation is fully realized, or a significantly better opportunity appears.
🏠 Everyday Analogy
📖 Core Interpretation
Julian Robertson advocates a repeatable process: define criteria, execute consistently, and review decisions against evidence. Process quality drives outcome consistency.
💎 Key Insight：Disciplined selling prevents emotional decision-making.
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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
Tech Bubble Avoidance (1999)
Robertson avoided overvalued dot-com stocks, shorting some high-flyers and owning fundamentally strong, cash-generative businesses instead.
✨ Outcome：Underperformed during the late-stage bubble but delivered superior risk-adjusted returns after the 2000–2002 tech crash as speculative names collapsed.
2
Tiger vs. Tech Bubble (1998)
Robertson shorted overvalued tech stocks and stayed long fundamental value names while the dot-com bubble inflated, causing sharp underperformance.
✨ Outcome：Massive redemptions and losses forced Tiger Management to close in 2000, despite the bubble bursting soon after and vindicating his thesis.
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