We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

Two investment principles from Peter Lynch that I think will make you a better investor

The legendary value investor believes that ordinary people could do just as well as professionals in the stock market.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Peter Lynch is a value investor who has devoted a lot of time and energy to educating people about the stock market. Here are two of his famous investing principles that could make you a better investor.

Know your strengths

The price of a stock is ultimately related to the ability of the underlying business to generate cash for its shareholders. In the short term, that relationship is sometimes disrupted, but in the long run it is borne out. Therefore, if you know whether a company’s product or service will become popular before the market realises it, you can buy the stock at a discount to future value. How do you know whether a product will sell well or not? You may find that you know a lot more than you think you do. 

XXX

Lynch is a great believer in the idea that ordinary people can invest just as well as professionals, provided they stick to what they know. For instance, a mechanic probably has a lot more in-depth knowledge of the automobile market than an analyst at a bank does. Similarly, a biochemist will have more insight into the pharmaceutical industry than a professional money manager. The trick is taking what you are already good at and focusing on that, and having the discipline to not get swept along by the next investing fad.

Control your emotions and know yourself

Peter Lynch famously said: “The key organ is not the brain. It’s the stomach”. Much like Warren Buffett, Lynch does not consider intelligence to be a particularly important factor in investment success. However, he considered emotional fortitude to be of paramount importance. Not everyone is cut out to be a long-term investor. Deploying capital at a time when everyone else is scared and selling their positions is not an easy thing to do, even if you know intellectually that it is the right thing to do. At the end of the day, humans are animals who instinctively follow the herd. 

Seth Klarman, another well-known value investor, likes to say that value investing is fundamentally an arrogant act – you have to stand there and say “I’m going to buy this when no one else wants to buy it because I believe that I know better than everyone else”.

Having self-confidence (and the correct degree of arrogance) is one challenge. Being humble is another. It’s impossible to be right 100% of the time. It’s difficult to be correct even 60% of the time. This means that you must have the humility and presence of mind to say “you know what, I was wrong on this one”. Sometimes it is better to accept defeat and move on, especially when new information comes out that disproves your thesis on a stock. And after all, it doesn’t matter how often you are right. What matters is how big you win.

Neither Stepan nor The Motley Fool UK have a position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »