Joel Greenblatt
Joel Greenblatt📌 Investment Psychology

Joel Greenblatt's Investment Psychology Rules

Joel Greenblatt (born December 13, 1957) is an American investor, hedge fund manager, and author. He is the founder of Gotham Capital, which achieved annualized returns of approximately 40% from 1985 to 2006, and is a professor at Columbia Business School. Greenblatt is best known for developing the "Magic Formula" investing strategy, a systematic approach that ranks stocks based on...

3 principles·Investment Psychology

3 Key Investment Psychology Principles

#1

Master Your Emotions

"The greatest enemy of the investor is himself. Fear, greed, regret, and pride cause more losses than any economic event. Master your emotions to master the market."

Master your emotions to master the market.

🌿 Intermediate★★★★★
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#2

Behavioral Bias Awareness

"Know the common behavioral biases that trap investors: anchoring, confirmation bias, loss aversion, and herding. Awareness is the first step to prevention."

Know your behavioral biases to avoid them.

🌿 Intermediate★★★★☆
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#3

Independent Thinking

"Think independently. The crowd is often wrong at extremes, and following popular opinion is a reliable path to mediocre returns. Form your own informed views."

Think independently from the crowd.

🌿 Intermediate★★★★★
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Frequently Asked Questions

What are Joel Greenblatt's key investment psychology principles?

Joel Greenblatt has 3 key principles on investment psychology. The most important one is "Master Your Emotions" — The greatest enemy of the investor is himself.

How does Joel Greenblatt apply investment psychology in practice?

Joel Greenblatt applies investment psychology through several key principles including "Master Your Emotions" and "Behavioral Bias Awareness". These principles guide practical investment decisions and have been tested across decades of market cycles.

What makes Joel Greenblatt's approach to investment psychology unique?

Joel Greenblatt's approach to investment psychology is distinguished by a focus on long-term thinking and fundamental analysis. With 3 specific principles in this area, Joel Greenblatt provides a comprehensive framework that investors at any level can study and apply to improve their decision-making.

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