The Traders Journal

Peter Lynch: How He Helped My Evolution as an Investor

Gatis Roze

Gatis Roze

Author, Tensile Trading: The 10 Essential Stages of Stock Market Mastery

PeterPeter Lynch started managing the Fidelity Magellan Fund in 1978 with $20 Million in assets.  When he retired in 1990, the fund had ballooned to $14 Billion largely as a result of his 29.2% average annualized return.  Peter Lynch’s mantra was to  “invest in what you know” and his primary investing approach was based on simple research, patience and resilience.  He captured my attention while I was still in graduate school, and his reign continued for a decade after that.  In those years, I found encouragement and inspiration in Lynch’s famous saying “Everyone has the brainpower to follow the stock market.  If you made it through 5th grade math, you can do it.”

My trading journal is jammed with many of his pithy observations.  Here are a few of my favorite Lynch truisms, each followed by my own insights.



  1. "It’s human nature to keep doing something as long as it’s pleasurable and you can succeed at it, which is why the world population continues to double every 40 years.” My takeaway:  if you aren’t getting pleasure from investing, you’re doing something wrong.  If you stop enjoying it, it’s probably time to step away.
  2. “In this business, if you are good, you’re right 6 out of 10 times.  You’re never going to be right 9 out of 10.”  Think of investing as baseball.  Novice investors have the most trouble here.   Often coming from successful professional careers, they’re used to batting 80% or better – suddenly hitting less than 50% is emotionally difficult.
  3. “You can find good reasons to scuttle your equities in every morning paper and on every broadcast of the nightly news.”  This relates back to what Peter Lynch said about needing to be resilient and patient.  I’ve always maintained that Wall Street is the world’s most sophisticated disinformation machine.  The so-called experts on the Street are always trying to get you to do the opposite of what is best for your investing returns.  You must believe in what your charts tell you, not the talking heads.
  4. “Gentlemen who prefer bonds don’t know what they’re missing.”  Peter Lynch was an advocate of staying fully invested in a portfolio of stocks and equity funds, and he derided those who kept their assets in bonds or money market accounts.  He famously said, “I’m always fully invested.  It’s a great feeling to be caught with your pants up.”  What’s the point here?  If you hope to have more money tomorrow than you have today, you have to be willing to put a fair chunk of your assets into stocks.
  5. “There seems to be an unwritten rule on Wall Street.  If you don’t understand it, then put your lifesavings into it.”  This is clearly a tongue-in-cheek comment.  Both Peter Lynch and Warren Buffett preached to their respective shareholders about the importance of understanding a company’s business and products.  How many investors truly understood the inner workings of Enron and AIG?   Clearly, they paid dearly for their oversight.
  6. “As I look back now, it’s obvious that studying history and philosophy was much better preparation for the stock market than studying statistics.  Investing in stocks is an art, not a science, and people who’ve been trained to rigidly quantify everything are at a big disadvantage.”   My own belief is that reading stock charts is indeed an acquired art.  Being able to accurately listen to what the charts are telling you requires a very personal understanding of psychology, history and who you are as an investor.  Rigidity is kryptonite to a trader.  As Peter Lynch aptly noted, “the natural born investor is a myth.”

Although I read Lynch’s books, followed his career and learned his investing approach, I eventually formulated my own investing methodology and evolved into a very different type of trader than Peter Lynch.  I believe deeply that the education of any investor commands an openness of mind and spirit that allows consideration of other perspectives.  But this openness must be balanced by the need to emerge true to your own investment principles, tendencies and emotional nature.

Trade well; trade with discipline!
-- Gatis Roze

SUGGESTION:  Make it easier to read my weekly blog by signing up for automatic RSS or email updates!

Gatis Roze
About the author: , MBA, CMT, is a veteran full-time stock market investor who has traded his own account since 1989 unburdened by the distraction of clients. He holds an MBA from the Stanford Graduate School of Business, is a past president of the Technical Securities Analysts Association (TSAA), and is a Chartered Market Technician (CMT). After several successful entrepreneurial business ventures, Gatis retired in his early 40s to focus on investing in the financial markets. With consistent success as a stock market trader, he began teaching investments at the post-college level in 2000 and continues to do so today. Learn More