Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

How to manage your psychology in the stock market

Michael Taylor looks at how to manage our psychology 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.

Many investors believe that other investors are their competition. 

They’re wrong.

Their only competition is themselves. Stock market investors go through a huge range of emotions, from excitement and greed, to fear and self-loathing. But fear not – there are several ways that we can manage our heads in this game and not make some common mistakes. 

Have a self-imposed limit on position size

By having a limit on how big our position is, we are able to stop our greed from ballooning out of control. When we spot a good opportunity in the market, it’s natural that we want to put our best ideas to work there. But this is dangerous – what if we are wrong?

Using a limit on position sizing will prevent us from being burned should we be wrong. If we do pick a winner, then one stock can easily become a large percentage of our portfolio – meaning that our portfolio’s performance is now correlated with that stock. With a position size limit, we’ll be forced to trim the position and bank profits as the position size increases. 

Look for reasons to not buy 

We all love buying stocks. But what we should be doing is looking for reasons not to buy the stock right from the start. That means doing some digging, and looking at whether management are aligned with shareholders. Check the director salaries. Check the director shareholdings. Are they clock punchers? Or are they well motivated to create and deliver shareholder value?

It’s also worth looking at what the company actually does, and going out to speak to its customers. If the customers tell you that the product is nothing special, then that means it is easily replaceable. And if it’s easily replaceable, then it has no moat. 

Check the company’s moat

If a company doesn’t have a moat, then it offers nothing to protect itself from copycats. That means anyone could set up as a competitor and erode our target company’s margins. Always check for the moat and see how strong it is.

Understand why you’re buying and when you’d sell

According to Sun Tzu from The Art of War, a good general wins first then battles. That is exactly what we should be doing with our investments.

If we understand why we’ve bought, then even if the price is showing our position as buying in the red, then we must remember why we bought in the first place and not get scared and shaken out of our position. 

We should also know at what point we’re happy to sell. If certain aspects of the business change, then we know we should sell our shares in the stock. 

Know what our sell triggers are, and then monitor the stock. 

Views expressed 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

Forget high yields? Here’s the smart way to build passive income with dividend shares

Stephen Wright outlines how investors looking for passive income can put themselves in the fast lane with dividend shares.

Read more »

Businessman hand stacking up arrow on wooden block cubes
Investing Articles

15,446 Diageo shares gets me a £1,000 monthly second income. Should I?

Diageo has been a second-rate income stock for investors over the last few years. But the new CEO sees potential…

Read more »

Investing Articles

2 FTSE 100 stocks to target epic share price gains in 2026!

Looking for blue-chip shares to buy? Discover which two FTSE 100 stocks our writer Royston Wild thinks could explode in…

Read more »

A row of satellite radars at night
Investing Articles

If the stock market crashes in 2026, I’ll buy these 2 shares like there’s no tomorrow

These two shares have already fallen 25%+ in recent weeks. So why is this writer wating for a stock market…

Read more »

British Pennies on a Pound Note
Investing Articles

How much money does someone really need to start buying shares?

Could it really be possible to start buying shares with hundreds of pounds -- or even less? Christopher Ruane weighs…

Read more »

Two gay men are walking through a Victorian shopping arcade
Investing Articles

With Versace selling for £1bn, what does this tell us about the valuations of the FTSE 100’s ‘fashionable’ stocks?

Reflecting on the sale of Versace, James Beard reckons the valuations of the FTSE 100’s fashion stocks don’t reflect the…

Read more »

A senior group of friends enjoying rowing on the River Derwent
Investing Articles

Want to stuff your retirement portfolio with high-yield shares? 5 to consider that yield 5.6%+

Not everyone wants to have a lot of high-yield shares in their portfolio. For those who might, here's a handful…

Read more »

Affectionate Asian senior mother and daughter using smartphone together at home, smiling joyfully
Investing Articles

How much do you need in a SIPP to target a £3,658 monthly passive income?

Royston Wild discusses a 9.6%-yielding fund that holds global stocks -- one he thinks could help unlock an enormous income…

Read more »