The Man Who Solved the Market: How Jim Simons Launched the Quant Revolution

by Gregory Zuckerman

They posited that the market had as many as eight underlying “states”—such as “high variance,” when stocks experienced larger-than-average moves, and “good,” when shares generally rose.

Their model foreshadowed revolutions in finance—including factor investing, the use of models based on unobservable states, and other forms of quantitative investing—that would sweep the investing world decades later.

When desire and data are in collision, evidence sometimes loses out to emotion. Brian Keating,

books on technical analysis—as well as Benjamin Graham and David Dodd’s landmark tome, Security Analysis, which laid the foundations for fundamental investing—Thorp