Stock Market Prediction: The Planetary Barometer and How to Use It by Donald A. Bradley

Stock Market Prediction: The Planetary Barometer and How to Use It by Donald A. Bradley is one of the foundational works in financial astrology, originally published in 1950 and expanded in later editions. Bradley, a respected sidereal astrologer, introduces a systematic method for linking planetary aspects to collective psychology and, in turn, to the fluctuations of the stock market. Rather than offering a speculative “system,” he develops a statistical and mechanical approach to interpreting cycles, correlations, and planetary configurations.

The book explains how mass psychology—the underlying force behind market enthusiasm and panic—can be measured by charting planetary alignments. Bradley details the influence of major aspects such as conjunctions, squares, trines, and oppositions, showing how these celestial events translate into bullish or bearish market tendencies. He demonstrates his methods through historical examples, including the 3½-year business cycle and the Jupiter–Uranus aspect cycle, and introduces the famous Siderograph, a graphing technique that became a cornerstone for astro-economic research.

Written with clarity for both astrologers and market students, Bradley’s work bridges the gap between astronomy, psychology, and financial behavior. It is not merely theoretical: it provides a practical framework for anticipating market swings and understanding long-term trends shaped by planetary forces. For students of W.D. Gann methods, cycles research, or astro-finance, this book remains an indispensable guide that continues to inspire market researchers and traders seeking a deeper grasp of cosmic order in economics.

✅ What You Will Learn:

Through Bradley’s Planetary Barometer, you will learn how to transform astrological data into a practical forecasting tool for financial markets. The book teaches you to identify the psychological waves that drive collective investment behavior and to chart them using planetary aspects as triggers. You will understand how conjunctions, squares, trines, and oppositions influence optimism, fear, and herd behavior, and how these mood shifts manifest in stock prices.

You will also gain insight into the critical Jupiter–Uranus cycle and its role in shaping the well-documented 3½-year business cycle, alongside broader planetary rhythms that echo through history. Bradley explains how to compute aspect strength, apply statistical testing, and build a Siderograph—a predictive chart aligning planetary influence with market activity.

By the end of your study, you will be able to recognize the correspondence between celestial movements and financial tides, use planetary data to anticipate potential market turning points, and integrate astro-cycles into your trading or investment research. This book equips you not only with technical instructions but also with a philosophical understanding of how markets reflect the greater cosmic order.