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Bad luck Quote by Eugene Fama

“The problem that people don't understand is that active managers, almost by definition, have to be poorly diversified. Otherwise, they're not really active. They have to make bets. What that means is there's a huge dispersion of outcomes that are totally consistent with just chance. There's no…” quote by Eugene Fama
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“The problem that people don't understand is that active managers, almost by definition, have to be poorly diversified. Otherwise, they're not really active. They have to make bets. What that means is there's a huge dispersion of outcomes that are totally consistent with just chance. There's no skill involved it. It's just good luck or bad luck.”

Eugene Fama

About This Quote

Source Article: Journal of Portfolio Management, 1992

Active managers must concentrate bets, leading to high outcome variance that is largely random, not skill‑based.

In simple terms: Active management is mostly luck.

Key Takeaway

Beware of over‑reliance on active managers.

Themes

investment risk efficiency finance

Mood

cautious analytical

Type

financial educational

When to use this quote

  • asset allocation
  • risk assessment
  • investment strategy

Key Concepts

Portfolio theory randomness

Questions to Reflect On

  • Can investors reliably identify skillful managers?
  • What role does diversification play in active strategies?
A Different Perspective

Skill may be overstated in active management.

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