5 common mistakes young investors should avoid

Don’t squander your chances of getting rich from the stock market. Avoid these mistakes at all costs.

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.

Beginning your investing journey as early in life as possible is vital if you’re to take full advantage of compound interest. Thanks to what Albert Einstein declared the “eighth wonder of the world,” getting into the habit of making even modest monthly contributions can go a long way to building a sizeable nest egg to spend later on.

That said, what you manage to avoid doing as a young investor is just as important. Here are five mistakes that could negatively impact on your chances of growing rich from the stock market.

1. Failing to invest according to your time horizon

Before throwing your money at the market, it’s essential to have some idea of how long you intend to stay invested for. Clearly, those in their 20s and 30s are at a significant advantage over more mature market participants with the former able to greet any downturns with a shrug of the shoulders.

Nevertheless, given the unpredictability of equities over the short term, the stock market is probably not the best destination for your cash if it’s likely you’ll need access to it within only a couple of years in order to, say, pay a deposit on a property. 

2. Ignoring the small-cap premium

Thanks to the relative volatility of their share prices, any strategy that involves investing in smaller businesses is traditionally regarded as riskier than buying a selection of companies in the FTSE 100.

However, studies have consistently shown that small companies vastly outperform their larger peers over the long term. Performance over the short term hasn’t been bad either. Last year, the Numis Smaller Companies index (which tracks the bottom tenth of the UK stock market) returned just under 19% compared to the 11% achieved by the FTSE 100.

As such, younger investors should consider keeping at least some of their capital in a diversified group of market minnows.

3. Withdrawing and spending dividends

This one’s simple. Dividends are wonderful to receive but they’re also tempting to spend.

Given that the huge proportion of eventual returns are made from these payouts, the best thing young investors can do is simply re-invest what they receive straight back into the market.  

Easy? Perhaps not but the best investors tend to be the most disciplined.

4. Not holding shares inside a tax-efficient account

Since the average retirement age is only heading in one direction, it’s possible that some people in their 20s will want to retain their equity holdings for the next 50 years. The only problem here is that capital gains tax will likely take a sizeable proportion of whatever profits are realised when the time comes to sell.

While we can’t be sure how taxation will change in the future, i’st best to do what you can now to minimise the amount that needs to be given back later. Consider holding all your investments in a stocks and shares ISA or a self-invested personal pension (SIPP). Whatever you make will then be protected.

5. Failing to stay calm

While this could apply to all investors, it’s particularly pertinent to those still young. So long as you’re committed to staying invested for decades, it’s absolutely vital to cultivate the ability to refrain from panicking when others are biting their nails and reaching for the sell button. Your future self will thank you for it.

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

Santa Clara offices of NVIDIA
Investing Articles

With a forward P/E of 24.4, this US phenomenon looks incredibly cheap to me!

Trading at less than 25 times earnings, James Beard reckons this is one of the cheapest stocks around. And it’s…

Read more »

Young female hand showing five fingers.
Investing Articles

Down 21% in 2026, Reckitt shares are now offering a 5% dividend yield

It’s quite rare for consumer staples companies to offer yields of 5%. So could there be an opportunity here for…

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

UK investors are piling into a Magnificent 7 stock and it isn’t Nvidia

Nvidia's been the most popular Mag 7 stock in recent years. However, right now, investors are gravitating towards another Big…

Read more »

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

How many investments do you need in your Stocks and Shares ISA?

The best way to protect a Stocks and Shares ISA from permanent losses is through diversification. But how many investments…

Read more »

Investing Articles

Warren Buffett once said he’d put 100% of his net worth in this stock. How’s that worked out?

Warren Buffett said in 2009 that Wells Fargo was the company he’d put all of his money in, if he…

Read more »

Content white businesswoman being congratulated by colleagues at her retirement party
Investing Articles

How big would a Stocks and Shares ISA need to be to target a monthly income of £3,253?

The UK’s average salary is £3,253 a month. But how much of this would need to be put into a…

Read more »

Content white businesswoman being congratulated by colleagues at her retirement party
Investing Articles

How much would an ISA need to double the State Pension and target £25,094 a year?

Most people rely on the State Pension for retirement — but what if you could build a second income that…

Read more »

piggy bank, searching with binoculars
Investing Articles

A once-in-a-decade chance to buy these S&P 500 shares?

Stephen Wright thinks shares in this S&P 500 company, at their lowest P/E ratio in 10 years, look incredibly compelling.

Read more »