Fortune's Formula: The Untold Story of the Scientific Betting System That Beat the Casinos and Wall Street (Expanded 20th Anniversary Edition) -- William Poundstone, Paperback

An updated edition of the classic book that introduced the world to the controversial money-making formula known as the Kelly system.

In 1956, two Bell Labs scientists discovered the scientific formula for getting rich. One was the mathematician Claude Shannon, neurotic father of our digital age, whose genius is ranked with Einstein's. The other was John L. Kelly Jr., a Texas-born, gun-toting physicist. Together they applied the science of information theory--the basis of computers and the internet--to the problem of making as much money as possible, as fast as possible.

Shannon and the MIT mathematician Edward O. Thorp took the "Kelly formula" to Las Vegas. It worked. They realized that there was even more money to be made in the stock market. Thorp used the Kelly system with his phenomenally successful hedge fund, Princeton-Newport Partners. Shannon became a successful investor, too, topping even Warren Buffett's rate of return. Fortune's Formula traces how the Kelly formula sparked controversy even as it made fortunes at racetracks, casinos, and trading desks. It reveals the dark side of this alluring scheme, which is founded on exploiting an insider's edge.

Featuring a new preface and sixty pages of new material, this 20th anniversary edition of William Poundstone's classic book is the definitive account of the betting system that forever changed our understanding of risk-taking.

Author: William Poundstone
Publisher: Picador USA
Published: 12/09/2025
Pages: 480
Binding Type: Paperback
Weight: 1.00lbs
Size: 8.25h x 5.38w x 1.00d
ISBN: 9781250391124

About the Author
William Poundstone is the author of more than a dozen books and has contributed to The New York Times, The Economist, Harper's, Harvard Business Review, and other publications. After studying physics at MIT, Poundstone forged a career delving into the social implications of scientific concepts, covering topics ranging from the prisoner's dilemma to the psychology of prices. He lives in Los Angeles.