Seth Klarman - Contrarian Investing, Discipline, and Building Baupost

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Aug 1, 2025

Seth Klarman, CEO of The Baupost Group and a major figure in value investing, shares his journey from childhood coin arbitrage to founding his billion-dollar firm. He emphasizes the timeless principles of market inefficiencies and the critical balance between specialization and generalization. Klarman discusses the importance of temperament in investing, the implications of trends like AI and passive investing, and the need to align with management teams for informed decisions. His insights offer a fresh take on navigating the current investment landscape.

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ANECDOTE

Klarman's Coin Arbitrage Beginnings

Seth Klarman started arbitraging silver coins as a kid by collecting rare dimes and quarters from bus drivers.
This early business sparked his interest in spotting and exploiting market inefficiencies.

ANECDOTE

Learning Value Investing at Mutual Shares

Seth learned investing at Mutual Shares managing special situations like spin-offs and distressed railroad bonds.
This exposed him to niche, mispriced opportunities requiring deep knowledge and patience.

INSIGHT

Essence of Market Inefficiency

Market inefficiencies arise because humans behave emotionally and impose constraints on investments.
These inefficiencies create opportunities for value investors through fundamental analysis and patience.

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In this episode, host Michael Mauboussin sits down with Seth Klarman, CEO and portfolio manager of The Baupost Group. One of the most influential practitioners of value investing, Seth shares his formative stories — from arbitraging coins as a kid to launching Baupost in 1982 — and reflects on his decades-long investment philosophy. They explore timeless principles of market inefficiencies, the importance of temperament, specialization versus generalization, the role of patient capital, and the challenges and opportunities ahead for investors in today’s world. Seth also opens up about technology trends like AI, the evolving market structure, and the enduring lessons from Graham & Dodd — and much more!

Key Topics:

Seth’s early entrepreneurial ventures and coin arbitrage (2:10)
Lessons from working at Mutual Shares with Max Heine and Michael Price (4:12)
Starting Baupost and managing the founding families’ wealth (10:53)
Core principles behind value investing and market inefficiencies (13:06)
The impact of indexing, ETFs, and passive investing trends (16:42)
Generalists vs. specialists in investment research (19:06)
How Baupost evaluates opportunities across asset classes (21:13)
Why value investing combines a contrarian streak with a calculator (23:51)
The importance of meeting management teams and assessing intent (26:44)
Building and educating a long-term oriented client base (29:06)
Managing behavioral biases and fostering the right temperament (31:21)
Current market outlook and where Baupost sees value today (34:03)
How AI is changing research and efficiency at Baupost (36:54)
Broader applications of the “Moneyball” mindset (40:13)
The difference between an analyst and a portfolio manager (44:01)
Seth’s views on risk, business ethics, and business education (45:50)
What worries Seth about the future — and what excites him (48:11)
Book recommendations from Seth Klarman (51:42)
And much more!

Mentioned in this Episode:

Margin of Safety by Seth Klarman
Security Analysis by Benjamin Graham & David Dodd (Seventh Edition)
Moneyball by Michael Lewis
Lost & Found by Kathryn Schulz
Being Wrong by Kathryn Schulz
The Light Eaters by Zoë Schlanger

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