Seth Klarman

Seth Klarman is the founder of The Baupost Group and the author of Margin of Safety (1991), one of the most influential—and hardest to find—books on value investing ever written. Buffett-style in temperament, Klarman built his career on the same bedrock ideas Buffett learned from Benjamin Graham: intrinsic value, margin of safety, and the refusal to overpay.

The Baupost Approach

Klarman runs a concentrated, patient portfolio and is willing to hold large cash positions when nothing cheap appears. That willingness to do nothing—to wait for a margin of safety—is the single hardest discipline for most investors to copy.

Why He Matters

• Price over prediction: he refuses to forecast markets, focusing instead on what a business is worth.
• Downside first: capital preservation drives every decision, echoing Graham's protective philosophy.
• Owner's mindset: like Warren Buffett, he treats stocks as fractional ownership of real businesses.

Investor Takeaway

Klarman shows that the old rules still work: know value, demand a discount, and let time do the rest. His career is a modern proof that a durable economic moat and patient capital allocation beat market timing.