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 Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

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. 

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

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

Investing Articles

Here’s how I’m trying to build wealth in my Stocks and Shares ISA over the next 5 years

Ben McPoland highlights an investment in his Stocks and Shares ISA portfolio that he's excited about over the next half-decade…

Read more »

Image of happy young people man and woman in basic clothing thinking and touching chin while looking aside isolated over yellow background
Investing Articles

I asked ChatGPT where Greggs shares might go next and it said… 

Harvey Jones is in two minds about the outlook for Greggs shares and called in artificial intelligence for its view.…

Read more »

Happy senior couple hugging and enjoying retirement at home
Investing Articles

Up 1,320% in 5 years — now check out the Rolls-Royce share price forecast for August 2027

The Rolls-Royce share price has completely smashed it but the big question is where it goes in future. Harvey Jones…

Read more »

Elderly, couple hiking and bird watching with adventure outdoor, hike together and fitness for active lifestyle. Nature, trekking and senior man pointing and woman with binocular, freedom and travel.
Investing Articles

After it rocketed to a 19-year high, here’s what the experts say about the Barclays share price outlook…

Harvey Jones examines why the Barclays share price has been flying lately and what broker forecasts suggest for the year…

Read more »

Man hanging in the balance over a log at seaside in Scotland
Investing Articles

I asked ChatGPT if the Lloyds share price will crash in 2026. It said…

What probability of a Lloyds share price crash does the world's leading artificial intelligence chatbot give? The answer may surprise…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

Will this week bring more bad news for BP shareholders?

The retreat in the oil price is good news for the global economy but bad news for BP shares. Harvey…

Read more »

Image of happy young people man and woman in basic clothing thinking and touching chin while looking aside isolated over yellow background
Investing Articles

How do I maximise the value of my Stocks and Shares ISA over the next 5 years?

Edward Sheldon has money in a Stocks and Shares ISA. And he wants to see the value of his portfolio…

Read more »

Portrait of pensive bearded senior looking on screen of laptop sitting at table with coffee cup.
US Stock

I asked ChatGPT where the SpaceX share price will be at the end of 2026. It said…

Jon Smith decides to get another opinion on the direction of travel for the SpaceX share price, and ChatGPT is…

Read more »