Ken Fisher’s prestigious Portfolio Strategy column in Forbes ran from 1984 to 2017, making him the longest continuously running columnist in the magazine’s history.

Ken Fisher is the Executive Chairman of Fisher Investments, an independent, fee-only investment adviser with $100 billion under management.2 Fisher Investments maintains four principal business units: Fisher Investments Institutional Group, Fisher Investments Private Client Group, Fisher Investments 401(k) Solutions Group and Fisher Investments International Group, which serve a global client base of diverse investors. The clients of Fisher Investments and its affiliates include over 175 large institutions and over 45,000 high net worth individuals.2

Ken Fisher has written eleven books, including four New York Times bestsellers: 2006's The Only Three Questions That Count, 2008's The Ten Roads to Riches, 2009's How to Smell a Rat, and 2010's Debunkery: Learn It, Do It, and Profit From It. Plan Your Prosperity, was released in November 2012, and The Little Book of Market Myths in January 2013. Ken’s latest book is Beat the Crowd published in March 2015. The Only Three Questions That Still Count was published in 2012 and offers updated data and commentary on market events from the past five years. In 1984, his Super Stocks was that year's bestselling stock market book. Others include 1987's The Wall Street Waltz and 1993's 100 Minds That Made the Market, both re-released by John Wiley & Sons in 2007. In addition to English, Kenneth Fisher’s books have been translated into Chinese (Traditional and Simplified), German, Indonesian, Japanese, Korean, Portuguese, Romanian, and Thai, reaching of 3/4 of global GDP.3

He is a regular contributor to several publications, including USA Today, Financial Times in the UK, Børsen in Denmark, De Telegraaf in The Netherlands and Focus Money in Germany.  Ken's early theoretical work in the 1970s popularized a tool known as the Price to Sales Ratio, which is now part of core financial curriculum. His recent research focuses on the emerging field of behavioralism and has appeared in many professional and scholarly journals such as the Journal of Portfolio Management and Financial Analysts Journal. In 2010, Ken was named one of the industry's 30 most influential people over the previous 30 years on Investment Advisor magazine's prestigious IA-30-30 list.

Ken Fisher is the third and youngest son of Philip A. Fisher, legendary investor and author of classic investing book, Common Stocks and Uncommon Profits, which remains in print to this day. Phil Fisher is credited with influencing a wide array of later successful and famed investors both through his teachings and writings. Phil Fisher had his own investment management practice in San Francisco where Ken worked for him in the early 1970s before starting his own firm. Ken is the only industry professional his father ever trained.

Ken Fisher's hobbies include the history of Kings Mountain, California (at the northern end of the Santa Cruz Mountains in the redwoods) and 19th century redwood lumbering history as well as lumbering history in general and everything about trees. Ken endowed the Ken Fisher Chair in Redwood Forest Ecology at Humboldt State University in order to support the study of coastal redwood ecology. It is the world’s first endowed chair devoted to a single tree species. Ken and his wife Sherrilyn have also endowed The Ken and Sherrilyn Fisher Journalism Center in the San Mateo Library.

2 As of 1/12/2018, Fisher Investments and its subsidiaries manage over $100 billion in assets—over $52 billion for North American private investors, over $41 billion for institutional investors and over $5 billion for European private investors.

3 Based on countries'official languages and GDP reported by the IMF, as of April 2013.

Author Q&A

Q: Do you really manage money for your clients with the Three Questions?

A: Of course! I can’t say it enough—the only way to make money in the market is by knowing what others don't. My firm, Fisher Investments, manages billions for individuals and institutions—and I only make market bets when I’m pretty sure I know something unique. The Three Questions help me do that. Most professionals want you to think this is very hard, but it isn’t. You just need to think like a scientist. The Three Questions help you do that.

Q: How can I use the Three Questions to become a better stock picker?

A: The Three Questions can help you pick better stocks, but so what? You don’t need to pick the best stocks to make money in the market. In the book I show you why.

Q: Why Three Questions? Why not Two or Four? Or Eighteen?

A: The Three Questions are really just one question: What do you know that others don’t? But that one question doesn’t give you something to act on. The Three Questions gives you a process to get at what you can know that others don’t.

Q: What made you decide to write this book?

A: This book pays homage to the most holy of “isms”—Capitalism. If you are not already a healthy fan of Capitalism, I hope the book will convert you.

Q: Why are you sharing your secrets with the public? Aren’t you giving away your market advantage?

A: First, the market truths I share are simply a demonstration of the Questions. Learning to use the Questions will help much more than reading about a few cute tricks I know. Learn to use the Questions, and you’ll be able to keep finding new truths on your own forever. There’s your advantage.

Second, no! The point of the Three Questions is constant innovation. If what I know is good and true, others will find out eventually, whether I clue them in or not. But I’ll already have moved on because I use the Three Questions to keep innovating. And you can do it too.

Q: What effect do you hope this book will have on the future?

A: I hope fewer investors will treat investing as a craft, and start approaching it as a science. If we all become scientists, who knows where we can go! It’ll be exciting to see. But knowing what I know about investors, I know that evolution will take a very long time. Which is good news, because those of us who think like scientists will have a distinct advantage over everyone else!