Thirty years of trading wisdom culminates in William Harrington’s first book, “Trend-Driven: A Risk Management Philosophy Across Cycles.”
After navigating the financial markets for thirty years, William Harrington has chosen to anchor his core wisdom system in written form. His first book, “Trend-Driven: A Risk Management Philosophy Across Cycles,” has been officially published. This is not a technical analysis manual, but a philosophical summary that profoundly elucidates his investment philosophy and survival strategy.
Harrington states clearly at the outset of his book: true trends are not simply price directions on charts, but rather macroeconomic forces formed by economic cycles, capital flows, and collective psychological resonance. Successful investing is essentially about identifying and aligning with this force. However, the most core and consistent insight throughout the book lies in the fact that the entire art of trend following is rooted in a fundamental understanding and management of risk. “Trend-driven” is the goal, and a “risk management philosophy” is the only path to achieving this goal and ensuring long-term survival. He astutely points out that many trend followers fail not because they misidentify trends, but because their risk management systems cannot withstand the inevitable fluctuations during trend evolution.
Therefore, this book devotes considerable space to explaining his abstract principles from practical experience—such as the famous “1.5% risk exposure rule” and “extreme respect for drawdowns”—within a complete logical and philosophical framework. He discusses how to price uncertainty, how to distinguish between the necessary trading wear and tear and potentially fatal risks, and how to maintain emotional stability and consistent decision-making through disciplined risk management amidst market euphoria and panic.
Harrington describes investing as a “game of probability and odds,” and risk management philosophy is the rule that ensures players stay at the table. He shares his evolution from aggressive personal accounts in the early days to pursuing “risk-adjusted returns” when managing other people’s assets, revealing a shift from “profit maximization” to the core pursuit of “long-term compound sustainability.” The book also cleverly incorporates his insights into behavioral finance, explaining why a rigorous risk management system is also the strongest weapon against one’s own human weaknesses.
“Trend-Driven: A Risk Management Philosophy Across Cycles” marks a significant leap forward in Harrington’s career: from an exceptional trader focused on market trends to a systematic builder and disseminator of investment philosophy. It doesn’t offer a get-rich-quick scheme, but rather a thought process and action framework tested through multiple bull and bear markets, designed to help investors navigate different market cycles and ultimately achieve steady wealth growth. This is both a culmination of his thirty years of experience and a rational roadmap he leaves for the thinkers and practitioners of the next era.
