We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

This UK medtech share has tumbled 60%. Why would I keep buying?

After this UK medtech share lost three fifths of its value in one year, our writer assesses whether he ought to sell… or buy more for his portfolio.

| More on:

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.

It has been a volatile few weeks for tech shares. A lot of the pain has centred on stock exchanges in the US, but some UK stocks have suffered too. One UK medtech share I own is now 60% lower than it was a year ago.

Is this a sign I should cut my losses – or a buying opportunity for my portfolio?

XXX

Medtech pioneer

The share in question is Renalytix (LSE: RENX). The company is not very well-known. That is partly because of its short history. It’s also because it focuses on the US medical sector, despite its London listing. Its flagship product is a kidney diagnostics platform. The company thinks it is a cost-effective way for doctors and medical care providers to diagnose certain kidney conditions.

That could potentially be a big market. Renalytix has proprietary technology and growing clinical support. It has made inroads into selling its services to medical providers. To date though, it remains in the early stages of commercialisation. In the first quarter, for example, revenue was just $0.5m. While that is better than the zero figure it recorded in the same quarter of the prior year, it is still a small amount. Even after the share price fall, Renalytix commands a market capitalisation of £286m.

Tumbling share price

The Renalytix share price was doing well until the end of July. Since then, it has steadily slid downwards. It has given up 37% since the start of this year, but the decline had already set in months before that.

After an initial flurry of excitement in the early months of Renalytix’s listing, I think increased investor focus on short-term business results has hurt the share price. Clearly the company’s product has potential. But it will take time and money to try and realise that potential. This has become clearer as Renalytix has ramped up its sales efforts by recruiting more staff. General and administrative costs in the quarter almost doubled on the year. The company identified increased headcount as a key driver for that increase.

Over time, if the sales effort pays off by generating substantial new revenue, I think it could trigger investors to start focusing once more on the long-term potential for Renalytix. But at the moment, a lot of shareholder attention is on the cost and speed of the sales push. If that continues to be the case, I think the share price could keep sliding from here.

I would still buy this UK medtech share

Despite that, I currently have no plans to sell my Renalytix shares. Indeed, I would consider using the current price weakness to increase my position.

The market size for kidney diagnostics is huge — and growing. Renalytix has an excellent product that could help it get a good share of the market. The more it sells, the greater the benefits of scale should be for it. So, if it can build revenue strongly enough, that could turn out to be very good news for profitability.

For now it remains to be seen if that will happen. The attractive economics of this business area could lead to more competition, hurting its long-term profitability. But despite that risk, I continue to see the company as an appealing UK medtech share for my portfolio.

Christopher Ruane owns shares in Renalytix. 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

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »