📖David Swensen

Core Investment Philosophy

🌱 Beginner★★★★★

A clear philosophy anchors you in turbulent times.

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A clear investment philosophy provides an anchor in turbulent times. Know what you believe, why you believe it, and stick to it when tested.

— Pioneering Portfolio Management,2000

🏠 Everyday Analogy

Market cycles resemble seasons: planting, growth, harvest, and winter. Using one strategy in every season leads to repeated mistakes.

📖 Core Interpretation

David Swensen sees markets as cyclical rather than linear. Understanding cycle position improves risk-taking decisions more than trying to call exact tops and bottoms.
💎 Key Insight:Conviction based on logic survives market storms.

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❓ Why It Matters

Ignoring cycles repeats the same mistakes: excessive optimism at peaks and excessive pessimism near troughs. Context matters for position sizing.

🎯 How to Practice

Monitor credit, valuation, earnings, and sentiment signals; reduce aggressiveness in euphoric phases and preserve flexibility in fearful phases.

⚠️ Common Pitfalls

Treating short rebounds as full cycle turns
Extrapolating peak conditions indefinitely
Becoming maximally defensive near valuation troughs

📚 Case Studies

1
Yale Endowment in Global Financial Crisis (2008)
Swensen’s diversified portfolio with alternatives, real assets, and bonds limited losses versus equity-heavy funds during the 2008 crash.
✨ Outcome:Endowment declined less than many peers and recovered strongly, reinforcing the value of true diversification.
2
Dot-Com Bust and Yale’s Limited Tech Exposure (2000)
During the tech bubble, Swensen avoided concentrated tech bets, emphasizing diversification across asset classes and valuation discipline.
✨ Outcome:Yale’s endowment sidestepped severe losses when the bubble burst, outperforming many tech-heavy investors over the period.

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