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.

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.

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. 

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

DIVIDEND YIELD text written on a notebook with chart
Investing Articles

Down 15% and a yield of 7.9%! Is this REIT dividend champion now irresistible?

This real estate investment trust (REIT) has one of the highest dividend yields on the London Stock Market. Royston Wild…

Read more »

Mature black woman at home texting on her cell phone while sitting on the couch
Investing Articles

Down 32% and with a P/E of 9.5, is this FTSE 250 share too cheap to ignore?

This FTSE 250 share is in freefall after slashing guidance for this financial year. But Royston Wild eyes a potential…

Read more »

Chalkboard representation of risk versus reward on a pair of scales
Growth Shares

Why high oil prices could be good news for Lloyds shares

Jon Smith talks through the implications of elevated oil prices and translates that through to the potential impact on Lloyds'…

Read more »

Investing Articles

Lists of income stocks to buy almost never include this one — but with a forecast 8.2% yield, I think they should!

This FTSE firm, not always seen as an income play, has a forecast yield of 8.2%, underlining why it's one…

Read more »

Person holding magnifying glass over important document, reading the small print
Investing Articles

Aviva’s share price is down 13% to under £7, despite outstanding 2025 results! Time for me to buy more?

I think Aviva’s share price reflects an outdated view of the business, and that gap between perception and reality is…

Read more »

Arrow symbol glowing amid black arrow symbols on black background.
Investing Articles

Shell’s £33+ share price is near an all-time high, so why am I going to buy more as soon as possible?

Shell's strong cash generation and improving growth drivers contrast with a share price well below my valuation, suggesting major long‑term…

Read more »

DIVIDEND YIELD text written on a notebook with chart
Investing Articles

An 8.4% forecast yield but down 16%! Time for me to buy more of this FTSE 100 passive income star?

This FTSE 100 passive‑income machine is delivering rising payouts and strong forecasts, and its share price suggests the market hasn’t…

Read more »

CEO Mark Zuckerberg at F8 2019 event
Investing Articles

£10,000 invested in Meta Platforms Stock 5 years ago is now worth…

Meta Platforms has been throwing good money after bad at Reality Labs since 2021, but the stock has more than…

Read more »