4 mistakes wise investors don’t make

Looking for stock market success? Learn what errors you need to avoid before you’ve had a chance to make them.

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.

Like any skill, becoming good at investing requires time, effort and a willingness to learn from your mistakes. The last of these is arguably the most difficult. No one likes to dwell on their failures for too long, especially those that also involved losing money. That’s why I recommend learning from others as much as possible.

Here are four things most experienced investors know that hold people back from stock market success.

1. Not having a plan

Failing to understand your reasons for investing is a classic error. “To get rich” isn’t specific enough. “To be as rich as… (insert name of celebrity/neighbour/arch-nemesis here)” should also be avoided. 

So, let’s get real. Identifying a financial goal — be it saving for a house deposit, a child’s university tuition fees, or retiring from the rat race early — has huge implications for your risk tolerance and subsequent investment strategy. It can mean the difference between focusing on established blue-chip companies that pay dividends to high-risk, high-reward, small-cap stocks. 

Another thing to recognise is that circumstances change. Financial planning is, therefore, a fluid process. 

2. Doing what everyone else does

While some derive intellectual pleasure from it, active investing (a.k.a picking stocks) is only really worth the trouble if you’re able to beat the market. That’s hard, even for fully-resourced professionals, hence why so many get an average return by following the herd.

Then again, wise private investors know they have a few things in their favour. With no requirement to justify their salaries on a regular basis, they have the freedom to zig while others zag. They can take advantage of stocks whose share prices are temporarily depressed and buy promising companies that most professionals are prohibited from touching. This makes it easy to generate a return that’s different from the market. 

There’s just one key point to realise from going your own way. You also need to be right. 

3. Failing to diversify

Many fortunes have been lost on the failure to spread money around. That’s why embracing diversification is so important. Throwing all your cash at one set of businesses because you believe that sector will outperform could lead to huge returns, but the reverse is also true. 

Failing to diversify even on a macro level can compromise returns. Since the depths of the financial crisis, the FTSE 100 has increased 90% in value. The US stock market, by constrast, is up roughy 280%!

Investors choosing to cast their net to include stocks from over the pond would have likely got a far better return. Like most things in life, balance is recommended. 

4. Ignoring costs

Performance can be less-than-optimal even if you manage to pick the right stocks because of the costs involved.

That you’ll generate charges is the only outcome you can be sure of when you’re investing. The more active you are, the bigger they’ll be since every buy/sell instruction to your broker involves paying commission. It’s worth bearing in mind that doing as little as possible can often be the most profitable strategy.

Another consideration is tax. Wise Fools know that holding stocks outside of an ISA or SIPP means paying tax on whatever you make. This can have a huge impact on how much money is compounded over time and what the result will be at the end of the journey.

Paul Summers has no position in any of the shares mentioned. The Motley Fool UK has no 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

Young mixed-race couple sat on the beach looking out over the sea
Investing Articles

Looking for a £750 monthly passive income? Here’s how much it takes

The idea of buying dividend shares for their passive income potential can sound promising. How might the nuts and bolts…

Read more »

Calendar showing the date of 5th April on desk in a house
Investing Articles

£20,000 in this ISA portfolio would generate £1,400 in passive income

Ben McPoland presents a ready-made Stocks and Shares ISA portfolio containing five UK names that as a group currently yield…

Read more »

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

The most underrated stock in the FTSE 100?

Nobody seems to like the FTSE 100’s water utilities. But could Severn Trent be the biggest opportunity that investors aren’t…

Read more »

a couple embrace in front of their new home
Investing Articles

£1,000 now buys 1,075 Taylor Wimpey shares. Worth it for the 8% dividend yield?

There’s a massive dividend yield on offer from his well-known UK housebuilder right now. But what are the risks for…

Read more »

Night Takeoff Of The American Space Shuttle
Investing Articles

Want to invest in SpaceX, Revolut, and TikTok? Consider buying this FTSE 100 stock

Ben McPoland thinks this FTSE 100 investment trust is a top stock to consider buying to gain exposure to the…

Read more »

Calendar showing the date of 5th April on desk in a house
Investing Articles

Here’s my Stocks and Shares ISA plan for 2026/27

Stephen Wright has a clear plan when it comes to investing in his Stocks and Shares ISA. But do the…

Read more »

Two elderly people relaxing in the summer sunshine Box Hill near Dorking Surrey England
Investing Articles

Where to look for safety in today’s stock market?

Stephen Wright has been looking for safety in a specific place in today’s stock market. And Warren Buffett’s firm has…

Read more »

Young black colleagues high-fiving each other at work
Investing Articles

This 5-share ISA could deliver an amazing second income of £762 a month

As the world’s stock markets plunge, many yields are rising. James Beard looks at five shares that could generate an…

Read more »