5 penny stocks to buy

Rupert Hargreaves explains why he would buy these five penny stocks for his portfolio today, based on their growth potential.

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.

Stacks of coins

Image source: Getty Images

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.

Some investors tend to avoid penny stocks. I think that is a mistake. These smaller businesses can offer some of the market’s best growth opportunities.

That said, they can come with significant risks and challenges as well. Therefore, they might not be suitable for all investors. 

Still, I am comfortable with the level of attention and research required to find the market’s best penny stocks. Here are five companies I would buy for my portfolio today. 

Growth opportunities

The first stock on my list is the leading supplier of specialist information management software, Idox. This company has been going through a restructuring during the past two years.

Its efforts are now starting to yield results. Profit before tax increased 45% in the six months to the end of April 2021. Management is currently looking to drive growth with higher-margin products as well as acquisitions. 

Another technology business I would buy for my portfolio of penny stocks is Seeing Machines. This Aim-listed provider of advanced computer vision technology reported an 18% increase in revenues for its 2021 financial year.

It has plenty of money to fund further product development with $48m of cash on its balance sheet at the end of June. 

I like this company because it has a long runway for growth in front of it. Revenues totalled just $47m last year, but it has $900m of revenue potential in the pipeline. This could signify a “step change” in growth.

One risk both Seeing Machines and Idox face is that of competition. The global IT and software market is incredibly competitive, and these companies are still relatively small fish in a big pond. If larger peers decide to aim for their market share, growth could come sliding to a halt. 

High-risk penny stocks

I tend to stay away from speculative penny stocks, but I am excited by the potential of Benchmark and AFC Energy

In my opinion, aquaculture biotechnology company Benchmark qualifies as a speculative enterprise because it is still losing money. The firm has accrued £145m of losses in its lifetime.

Still, it owns valuable pharmaceutical technology, and earnings are expanding. Revenues increased 12% in the first half of 2021, and adjusted earnings before interest, tax, depreciation and amortisation (EBITDA) rose 82%. I would buy the stock for this growth potential. 

AFC is developing hydrogen fuel cells, and it has received strong interest from some big clients. Unfortunately, revenue totalled just £150k in the six months ended 30 April 2021. Nonetheless, the group has several large orders in its pipeline and ended April with £62m of cash to help keep the lights on. 

These companies may not be suitable for all investors because they are risky propositions. There is no guarantee either will ever be able to make money and become sustainable, self-supporting enterprises. 

Oil growth

The final group I would buy for my portfolio of penny stocks is Jadestone Energy. The small-cap oil and gas producer has an impressive track record of purchasing oil assets and developing them to free up more cash and using the funds for additional acquisitions. As it develops this strategy, I am optimistic about future growth. 

This approach has worked so far, but if oil prices fall or the firm overstretched itself, Jadestone could start to struggle. 

Rupert Hargreaves 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

Middle-aged white man pulling an aggrieved face while looking at a screen
Growth Shares

Here’s how little £10,000 invested in Aston Martin shares at the start of 2025 is now worth…

Paul Summers takes a closer look at some scary numbers for anyone who bought Aston Martin shares at the beginning…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

UK stocks: the contrarian choice for 2026

UK stocks aren’t the consensus choice for investors at the moment. But some smart money managers who are looking to…

Read more »

Investing Articles

Down 20% in 2025, shares in this under-the-radar UK defence tech firm could be set for a strong 2026

Cohort shares are down 20% this year, but NATO spending increases could offer UK investors a huge potential opportunity going…

Read more »

Young Caucasian woman with pink her studying from her laptop screen
Investing Articles

New to investing? Here’s Warren Buffett’s strategy for starting from scratch

Warren Buffett says he could find opportunities to earn a 50% annual return in the stock market if he was…

Read more »

Investing Articles

Can the sensational Barclays share price do it all over again in 2026?

Harvey Jones is blown away by what the Barclays share price has been doing lately. Now he looks at whether…

Read more »

Investing Articles

Prediction: in 2026 mega-cheap Diageo shares could turn £10,000 into…

Diageo shares have been burning wealth lately but Harvey Jones says long-suffering investors in the FTSE 100 stock may get…

Read more »

Investing Articles

This overlooked FTSE 100 share massively outperformed Tesla over 5 years!

Tesla has been a great long-term investment, but this lesser-known FTSE 100 company would have been an even better one.

Read more »

A pastel colored growing graph with rising rocket.
Investing Articles

I’m backing these 3 value stocks to the hilt – will they rocket in 2026?

Harvey Jones has bought these three FTSE 100 value stocks on three occasions lately, averaging down every time they fall.…

Read more »