
Book Summary
The Complete TurtleTrader, subtitled How 23 Novice Investors Became Overnight Millionaires, tells the story of one of the most famous experiments in trading history. In the early 1980s, Chicago futures trader Richard Dennis, who had made a fortune starting as a runner on the trading floor, made a bet with his friend and fellow trader William Eckhardt: could trading be taught, or was it an inborn talent? To settle it, Dennis placed a newspaper advertisement offering to teach ordinary people to trade, backed them with his own money, and watched what happened.
The recruits, who became known as the Turtles, had anything but Wall Street backgrounds: among them were a professional blackjack player, a pianist, and a fantasy game designer. After about two weeks of training in a rules-based trend-following system, they traded real money under Dennis’s supervision. The results were extraordinary: the Turtles’ trading made roughly $100 million for Dennis, and several of them went on to highly successful trading careers of their own. Michael W. Covel, who tracked down the Turtles for the first on-the-record interviews with many of them, reconstructs the selection, the training, the rules, and the human drama of traders who had to follow a system even when every instinct told them to deviate.
The book is both a story and a manual. Covel lays out the Turtle system’s essentials: follow the trend, size positions by risk, cut losses quickly, and let winners run. But its real subject is the question Dennis and Eckhardt were arguing about. The experiment’s answer was yes, trading could be taught, but with a catch the book never hides: the same system produced very different results in different hands, because following rules under pressure turned out to be the hardest part of all.
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Who is Michael W. Covel?
Michael W. Covel is a trend-following researcher and the author of Trend Following, the book that introduced many readers to systematic trend following. He founded TurtleTrader.com, where he has documented trend-following traders and their methods for years, and his work is built on direct interviews with practitioners rather than on theory alone.
Covel’s approach as a writer is that of an advocate and an archivist at once. He believes in trend following, and he says so, but he also does the reporting work of finding the people who actually did it and getting them to talk about what the experience was really like, including the parts that did not go well.
Lessons From The Complete TurtleTrader
A system only works if you follow it. The Turtles all learned the same rules, and their results diverged anyway. The difference was not knowledge; it was temperament. The traders who made the most money were the ones who could watch a position move against them, or sit through a long flat stretch, without abandoning the system. The Complete TurtleTrader is, at its core, a book about the gap between knowing a rule and obeying it.
Risk management decides who survives. The Turtle rules devoted more attention to how much to risk on any single trade than to when to enter one. Position sizing by volatility, hard exit rules, and limits on total exposure were what kept a bad stretch from ending a career. Readers who take one practical lesson from this book should take that one.
Trend following is simple to describe and hard to live with. The system’s logic is straightforward: ride trends up and down, cut losses, let profits run. Living with it means enduring long losing periods and watching markets move without you. The book’s interviews make that psychological cost vivid, which is why it remains a useful antidote to anyone who thinks a trading system removes emotion from trading. It does not; it relocates it.
Skill can be taught, but it is not evenly distributed. Dennis won his bet, but the experiment also showed its limits. Teaching produced competent traders, not identical ones, and a few Turtles failed outright. The honest conclusion is that training matters enormously and still is not everything: temperament, discipline, and the ability to learn from losses separate the good from the great.
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Criticisms of the Book
Covel is an advocate for trend following, and it shows. His enthusiasm sometimes gives his own views more emphasis than the voices of the Turtles themselves, and readers who want a skeptical evaluation of trend following will find the book’s case mostly made by believers. The book also has gaps: with so many characters and competing interests, some Turtles’ stories are thinner than others, and a few important facts about the experiment’s later years remain unclear.
There is also a question of transferability. The Turtles traded in the futures markets of the 1980s, with leverage and market conditions that differ from what a retail investor faces today. The system’s principles, especially around risk, transfer well; the specific rules and return expectations do not transfer automatically, and readers should not expect 1980s results from applying the same rules now. Trend following also involves long drawdowns that many investors will find intolerable in practice, a cost the book describes honestly but that deserves emphasis.
Who is This Book For?
This book is for readers of Trend Following who want the full story behind trend following’s most famous experiment, and for systematic traders who want to understand the human side of rules-based trading. It is also a good read for anyone fascinated by the nature-versus-nurture question in skill: can expertise be taught, and what happens when it is?
It is not a step-by-step manual for building a trading system today, and beginners in investing should start elsewhere. Readers who want a complete, current guide to trend following will need a more recent book; this one is best read as history with lessons, not as instructions.
Final Thoughts
The Complete TurtleTrader endures because its question never gets old: is trading skill something you are born with, or something you can learn? Dennis’s experiment answered yes, with qualifications that matter more than the headline. The Turtles prove that a clear system, taught well, can turn novices into professionals, and they also prove that the system is the easy part. Following it, through losses and boredom and doubt, is the real skill, and this book shows that truth better than almost any other book on trading.









