We have some exciting news to share! The Motley Fool UK has now become 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. We’ll be introducing a new name and brand over the coming weeks — we're very excited to share it with you and embark on this new chapter together!

I broke my 2025 Stocks and Shares ISA plan by buying this stock while it was down 60%

Our writer explains why he just added to a big loser to his Stocks and Shares ISA portfolio, despite it going against one of his investing principles.

| More on:

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.

Businessman hand flipping wooden block cube from 2024 to 2025 on coins

Image source: Getty Images

At the start of the year, I decided I would avoid doubling down on my losing ISA investments. In other words, those holdings in my Stocks and Shares ISA that had taken a big plunge.

Specifically, I had been cut by a couple of falling knives called Diageo and Moderna. My strategy was to return to backing proven winners and companies on an upwards trajectory.

But four months into the year, I’ve just broken this plan. How so? Well, I added to my holding in healthcare giant Novo Nordisk (NYSE: NVO), which had fallen 60% in 10 months.

Here, I’ll explain why.

A still-growing business

Returning to Diageo and Moderna, these were companies I thought had exciting long-term futures (in premium spirits and mRNA technology respectively).

However, their near-term prospects looked cloudy, with weakening sales. Consequently, there was a lot of pessimism surrounding the pair, which I thought was overdone. But I underestimated the severity of their operational challenges and both stocks kept falling lower after I doubled down.

By contrast, Novo Nordisk is a leader in diabetes and GLP-1 weight-loss medicines — two areas that are still growing strongly. This year, the company’s revenue is expected to increase 18% to around $52bn, with a similar rise in earnings per share.

Looking further ahead, forecasts have revenue topping $70bn by 2028. Therefore, this doesn’t appear to be a company whose growth trajectory is in any real peril.

So why on earth did the stock plunge 60% inside one year?

Rising competition

The chief culprit is Eli Lilly, the company’s arch-rival in the lucrative GLP-1 weight-loss treatment space. While Novo Nordisk currently holds a market-leading position through its blockbuster injectable drugs Wegovy and Ozempic, Eli Lilly is winning the race to commercialise a daily weight-loss pill.

In short then, the market’s worried about rising competition. This largely explains why the stock has crashed, though uncertainty around tariffs also continues to weigh on the overall pharmaceutical sector.

Turning to telehealth platforms

To shore up its market position in the here and now, Novo recently signed deals with US digital health providers to sell Wegovy at discounted prices through their platforms.

Meanwhile, Novo Nordisk is selling the treatment at starting prices of $499 a month on its own direct-to-consumer online pharmacy (NovoCare). This should help keep sales high, though margins could take a bit of a hit due to the discounted prices.

Attractive valuation

The stock’s risen nearly 10% since I broke my ISA vow and topped up at $60. However, it’s still trading at just 14 times forecast earnings for 2026. That looks very cheap to me, despite the rising competitive threat from Eli Lilly.

According to forecasts from the World Obesity Federation, the number of obese adults will hit around 1.53bn by 2035. So the addressable market here is simply enormous. This could see sales of GLP-1 drugs for type 2 diabetes and obesity rise above $150bn in the 2030s, up from around $50bn last year. And reports say these treatments are finally set to be recommended by the World Health Organisation (WHO) in August.

Fact is, it’s unlikely Eli Lilly will totally corner this massive market. So I see Novo Nordisk stock as a cheap way for me to invest in this global mega-trend.

Ben McPoland has positions in Moderna and Novo Nordisk. The Motley Fool UK has recommended Diageo Plc, Moderna, and Novo Nordisk. 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

Aerial shot showing an aircraft shadow flying over an idyllic beach
Investing Articles

Just how cheap could IAG shares get this summer?

If the world runs out of jet fuel this summer then IAG shares could take a beating, says Harvey Jones.…

Read more »

Night Takeoff Of The American Space Shuttle
Investing Articles

Up 130% in 2026, can FTSE space stock Filtronic continue to soar?

Edward Sheldon thought that FTSE share Filtronic would do well in 2026. He wasn’t expecting it to shoot up 130%…

Read more »

British flag, Big Ben, Houses of Parliament and British flag composition
Investing Articles

Are investors still using an outdated playbook to value Lloyds shares?

Andrew Mackie looks beyond the standard rate-sensitive narrative around Lloyds shares to question whether we're missing a more resilient earnings…

Read more »

Hydrogen testing at DLR Cologne
Investing Articles

Is £15 the next stop for the Rolls-Royce share price?

Where will the Rolls-Royce share price go from here? Is a £15 price target for the next 12 months totally…

Read more »

Two female adult friends walking through the city streets at Christmas. They are talking and smiling as they do some Christmas shopping.
Investing Articles

How much is £7,620 saved in a Cash ISA a decade ago worth today?

Cash ISA savers have received an average of 4% over the last decade, but Harvey Jones says the average Stocks…

Read more »

Close-up as a woman counts out modern British banknotes.
Investing Articles

702 shares in this FTSE 100 stalwart earn a £100 a month second income

Unilever shares come with an unusually high dividend yield. Should investors looking for a second income grab the opportunity with…

Read more »

UK coloured flags waving above large crowd on a stadium sport match.
Investing Articles

This surging FTSE 100 share just hit £201! Will it ever split its stock? 

This high-quality FTSE 100 stock is up by a staggering 4,050% in the past 10 years. Why hasn't it split…

Read more »

Hand of person putting wood cube block with word VALUE on wooden table
Investing Articles

Just over £13 after its Q1 results, here’s why HSBC shares still look a bargain-basement buy for me anywhere below £20.68

HSBC shares have surged, but fresh results hint the market may still be missing a major value opportunity that long…

Read more »