GSK share price: a bargain for my ISA?

The GSK share price is 12% cheaper than it was at the start of the year. 6% dividend yields have me eyeing this FTSE 100 giant very closely indeed.

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.

GlaxoSmithKline (LSE:GSK) has had some positive headlines recently, adding momentum to the GSK share price growth in recent days. 

The multinational FTSE 100-listed pharma has been contracted by the UK government to help manufacture 60m doses of the Novavax Covid-19 vaccine. 

And yet the shares are trading 12% lower than 12 months ago. Could these be the perfect buy for my Stocks and Shares ISA when allowances reset in April? 

GSK share price: bargain?

Investing themes tend to come along in waves. At one point, the stock market will be overly optimistic about the prospects of growth companies. At other times the market will be unduly pessimistic about the future fortunes of dividend payers like GSK. 

The father of value investing and Warren Buffett’s mentor, Benjamin Graham, described the phenomenon like this. He wrote: “Price fluctuations have only one significant meaning for the true investor. They provide him with an opportunity to buy wisely when prices fall sharply and sell wisely when they advance a great deal.”

So is it time for me to “buy wisely” with the GSK share price having fallen sharply in the last 12 months? 

Future split 

The main risks on the horizon for me when I look at the GSK share price are the dividend and the planned split of the company. CEO Emma Walmsley is spearheading the division of GSK into two separate companies. One will focus on biopharma and drug development. The other will cover GSK’s consumer healthcare business. 

Its biopharma division continues to pump out news at a fair old clip. This covers developments in everything from HIV drugs to asthma treatments and monoclonal antibody antiviral remedies for Covid-19. I’m not so sure about the consumer healthcare arm. 

The moat is everything

I’m very much a fan of businesses with strong economic moats. When I look to buy income-producing shares for my ISA, I want to know those companies have market-leading positions. That’s so they can continue to dominate the market and produce healthy profits for years to come.

By 2026, GSK plans to double the number of market-leading ‘blockbuster’ drugs in its portfolio. To me, that means an even stronger moat. And given the company’s laundry list of trademarks and patents on its drugs, I see the GSK share price remaining fairly buoyant long term.

Higher profits also generally means a stronger chance that dividends will continue unabated. 

At today’s share price around 1300p, an 80p annual dividend represents a 6.1% yield. That’s among the best of what the FTSE 100 can offer. 

Analysts generally believe the GSK share price can support a 67p dividend going forward. Even at these lower levels that represents a 5.1% yield, far above the FTSE 100’s 2.3% average.

In conclusion

FY2020 results released in February 2021 showed me a resilient business that performed well during the pandemic. However, earnings per share are expected to decline in by a mid to high single digit percentage in 2021. It’s down to the cost of investing in the company’s drug pipeline. So investors could see the GSK share price fall further.

But I think a higher capex is a good trade off for improved margins.

Walmsley has hit £300m cost saving targets and with the 2022 split on track? I can believe her statement that shareholders should expect “meaningful improvement in revenues and margins“. I’m buying. 

TomRodgers has no position in any of the shares mentioned. The Motley Fool UK has recommended GlaxoSmithKline. 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

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

1 huge takeaway from the Martin Lewis investing presentation

Martin Lewis showed how returns from stocks have smashed the returns from cash savings over the last decade. But here’s…

Read more »

Middle aged businesswoman using laptop while working from home
Investing For Beginners

I think the best days for Lloyds’ share price are over. Here’s why

Jon Smith explains why Lloyds' share price could come under increasing pressure over the coming year, with factors including a…

Read more »

A graph made of neon tubes in a room
Investing Articles

£5,000 invested in the FTSE 100 at the start of 2025 is now worth…

Looking to invest in the FTSE 100? Royston Wild believes buying individual shares could be the best way to target…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Can the BAE share price do it again in 2026?

The BAE share price has been in good form in 2025. But Paul Summers says a high valuation might be…

Read more »

Investing Articles

Can Rolls-Royce, Babcock, and BAE Systems shares do it all over again in 2026?

Harvey Jones examines whether BAE Systems and other defence-focused FTSE 100 stocks can continue to shoot the lights out in…

Read more »

Investing Articles

7 UK dividend shares yielding over 7% that could thrive if rates fall in 2026

Mark Hartley weighs up the investment benefits of interest rate changes and how they could boost the potential of seven…

Read more »

Investing Articles

These 3 things could make a Stocks and Shares ISA a no-brainer in 2026

The government and the FCA are doing their bit to try to steer investors towards a Stocks and Shares ISA…

Read more »

Businessman using pen drawing line for increasing arrow from 2024 to 2025
Investing Articles

Revealed! The 10 best-performing FTSE 100 shares in 2025

It's been a year of golden gains for the FTSE 100 index, spearheaded by these 10 powerhouse stocks. But can…

Read more »