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Capital Allocators · January 8, 2024 · 50m

Lessons from Losing a Bet with Warren Buffett

Ted Seides reflects on his famous bet with Warren Buffett: that a portfolio of hedge funds would outperform the S&P 500 over 10 years. Buffett won decisively (S&P 500 returned 125% vs hedge funds' 36%). Seides shares the hard-won lessons about fees, indexing, and humility.

Canon

Seides demonstrates the courage-is-learnable Canon by publicly analyzing his loss: rather than hiding from the bet's outcome, he wrote extensively about what went wrong, what he learned, and how it changed his investment philosophy.

Highlights

The Buffett bet proved that after fees, most active managers underperform index funds — and the fee drag compounds devastatingly over long time horizons
Seides presents the numbers: the S&P 500 returned 125.8% over 10 years while the hedge fund portfolio returned 36%. The primary driver of underperformance wasn't bad stock picks — it was the 2-and-20 fee structure that consumed roughly half of the hedge funds' gross returns.