📖Joel Greenblatt
Risk-First Approach
Consider the downside before the upside.
Before considering how much you can make, consider how much you can lose. Risk management is not about avoiding risk entirely, but about understanding and controlling it.
🏠 Everyday Analogy
📖 Core Interpretation
Joel Greenblatt treats survival as the first objective. Limiting permanent capital loss, controlling leverage, and avoiding single-point failure are prerequisites for long-term compounding.
💎 Key Insight：Risk management is about understanding, not avoidance.
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❓ Why It Matters
A single large drawdown can erase years of progress. Risk control is not timidity; it is the operating system that keeps compounding alive.
🎯 How to Practice
Define downside scenarios before entry, cap position size, avoid fragile leverage, and maintain liquidity so mistakes remain survivable.
⚠️ Common Pitfalls
Equating volatility with all forms of risk
Oversized positions without an exit plan
Using leverage to compensate for uncertainty
📚 Case Studies
1
Dot-Com Bubble Peak (2000)
Portfolio heavily tilted to soaring tech stocks after big gains in 1999.
✨ Outcome：Annual rebalance trimmed tech, added undervalued cyclicals; reduced subsequent crash losses and improved 5-year risk-adjusted returns.
2
Pre-Crisis Risk Trim (2008)
Strong run in financials and commodities made them oversized allocations by mid-2008.
✨ Outcome：Annual rebalance cut exposure and added defensives; drawdown in 2008–2009 was smaller and recovery to prior peak occurred faster.
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