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Cover of Fortune's Formula

Fortune's Formula

The Untold Story of the Scientific Betting System That Beat the Casinos and Wall Street

400 pages

A thrilling intellectual heist where brilliant misfits use equations to outsmart casinos and Wall Street.

What it feels like

Reading this book feels like being invited into a smoke-filled back room where the world's smartest people are quietly dismantling the rules of chance. It moves with a brisk, caper-like energy, blending the cerebral satisfaction of a math puzzle with the high-stakes adrenaline of a casino floor. The prose is crisp and effortlessly engaging, translating dense probability theory into a gripping human drama populated by eccentric geniuses, mobsters, and Wall Street titans. The mood is intellectually stimulating and constantly suspenseful, making you feel as though you are discovering a forbidden secret about how the universe actually works. It is an absolute delight for armchair quants, finance nerds, and anyone who loves a true story about brilliant misfits beating a rigged system.

Mood
  • cerebral
  • high-stakes
  • intellectually stimulating
Tone
  • analytical
  • wry
  • engaging
  • suspenseful
Pace
brisk
Themes
risk and reward · beating the system · the illusion of certainty · genius versus greed
The writing
Crisp and narrative-driven, effortlessly translating dense probability theory into a gripping, character-rich caper.
The arc
Begins with quiet intellectual curiosity and accelerates into high-stakes tension, leaving the reader with a profound respect for mathematical elegance.
Who it's for
Armchair quants and narrative nonfiction fans who love seeing brilliant misfits use logic to dismantle rigged systems.
Content notes
  • gambling
  • financial ruin

About the book

This book is about Kelly's criterion developed in 1956 by two scientists (John Kelly Jr. and Claude Shannon) at Bell Labs for the transmission of information over copper wires but who immediately realized its application to gaming and investing. Many more professional gamblers used the formula than investors. One investor Edward Thorpe used it both to beat the casino's and as a hedge fund manager to beat the market. THE FORMULA does not tell one how to find edge but once one does the formula indicates how much one should bet to maximize the creation of wealth. Be warned that the use of a full Kelly will result in much volatility in the size of one's trading account. Many use a 1/2 Kelly which decrease volatility by 90% but decreases the size of the account after a 1000 trades by only 25%.

Description from Open Library.

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