Scientific Stock Forecasting
Scientific Stock Forecasting (OR LARGE PROFITS ON SMALL RISKS) is one of W. D. Gann’s most legendary documents—first appearing in The Ticker Investment Digest (December 1909) and later expanded through his published forecasts and market letters. In this work, Gann introduces a revolutionary idea for his time: that price movements in stocks and commodities obey the same natural laws of vibration that govern all physical phenomena.
Through extensive research in the Astor Library of New York and the British Museum, Gann analyzed more than a century of stock data, identifying periodic and cyclic patterns repeating with mathematical precision. He asserts that every market instrument has its own “rate of vibration,” just as each atom or element possesses its unique frequency. By determining this rate, he could forecast with remarkable accuracy when a stock would meet resistance, reverse trend, or accelerate.
The document includes verified reports of Gann’s extraordinary trading accuracy—286 trades in 25 days with 92 percent success—and detailed testimonials from contemporaries who witnessed his forecasts on wheat, cotton, and major stocks such as Union Pacific and U.S. Steel. Gann describes his decade-long effort to transform speculation into a mathematical and scientific profession, asserting that vibration is fundamental—nothing in existence is exempt from this law.
In later sections, Gann’s forecasts from 1919 through 1935 are documented, demonstrating uncanny precision across multiple market cycles, the 1929 panic, and the 1932 bottom. Together, these pages trace the evolution of his Master Time Factor, the foundation for all of his later works including Truth of the Stock Tape and Wall Street Stock Selector.
For serious students of Gann, Scientific Stock Forecasting is a historical cornerstone revealing how geometry, physics, and rhythm converge in market forecasting—showing that speculation, when approached scientifically, follows the same vibratory order that governs the universe.
