Joel Greenblatt

"Hedge fund manager and Columbia professor who systematized value investing into a simple formula."

Joel Greenblatt is an American investor, hedge fund manager, and academic best known as the founder of Gotham Capital, an investment partnership that reportedly returned over 40% annualized to investors during its first two decades. He is a professor at Columbia Business School, where he has taught value investing, and co-founder of Gotham Asset Management. Greenblatt developed the "Magic Formula" investing strategy at the center of this book — a systematic way of identifying good businesses trading at bargain prices — and originally wrote The Little Book That Beats the Market for his own children, explaining sophisticated value-investing principles through simple, jargon-free analogies.

{"books_reviewed": 1, "years_active": "1985-present", "primary_focus": "Value investing & quantitative strategy"}

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Key Ideas & Recurring Themes

The Magic Formula

Combining the rank of earnings yield and return on capital to buy a diversified basket of the top-ranked companies.

Earnings Yield

EBIT divided by Enterprise Value — a cheapness measure that accounts for debt and cash, unlike a simple P/E ratio.

Return on Capital

EBIT divided by tangible capital employed — a quality measure showing how efficiently a business turns capital into profit.

Notable Quotes

"Choosing individual stocks without any idea of what you're looking for is like running through a dynamite factory with a burning match. You may live, but you're still an idiot."
— The Little Book That Still Beats the Market

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Book Author Joel Greenblatt