As the GSK share price limps along, should I sell my GlaxoSmithKline stock?

The GSK share price is £1 lower today than it was at Xmas 1997. With such awful long-term performance, is it time to sell my long-held stock and move 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.

A GlaxoSmithKline scientist uses a microscope

Image: GlaxoSmithKline

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.

I’ve been a GlaxoSmithKline (LSE: GSK) shareholder for three decades. But with the GSK share price going nowhere fast, I’m thinking about selling my entire shareholding. Why keep faith in a company which has been a serial disappointment since 1999?

The GSK share price has struggled this century

Thanks to family connections with Glaxo and Wellcome, I’ve keenly followed GSK since the 1980s. I bought my first Glaxo (as it was then) shares in 1988/9. Also, I know upwards of 50 veteran GSK insiders and ex-employees. I’ve had a long, deep and intimate relationship with this firm. But looking at the GSK share price, I ask myself why remain a loyal shareholder when it keeps costing me money?

In the 1980s and 1990s, being a Glaxo shareholder was highly lucrative. The business boomed under the leadership of biochemist Sir Richard Sykes. During the late-millennium bull market, the GSK share price hit a record intra-day high of 2,333p and closing high of 2,288p on 8 January 1999. Sadly, it’s all been downhill since then. For the record, here’s the performance of the shares over various periods:

1W -0.9%
1M 2.1%
3M -3.7%
6M 2.5%
1Y -20.8%
2Y -14.4%
3Y -7.0%
5Y -10.2%

As you can see, the GSK share price has made zero progress in recent years. Alas, despite being a major vaccine supplier, GSK failed to capitalise on the global Covid-19 pandemic. Meanwhile, other big pharma stocks have soared in value. As I write, the GSK share price stands at 1,327.6p. That’s almost £1 below the 1,425p it closed at on Christmas Eve, 1997. In other words, it’s been a lost quarter-century for long-term GSK shareholders — including me.

GSK’s saving grace is its juicy dividend

Earlier this year, the GSK share price fell below £12, hitting a low of 1,190.8p on 26 February. That’s a very long way from their 52-week high of 1,748.55p on 13 May 2020. A fortnight ago, I made a positive decision not to sell my stake in GlaxoSmithKline. For a long time, I’ve kept hold of my stake because of GSK’s generous dividend yield. At the current share price, the steady 80p-a-year dividend works out to a hefty dividend yield of 6% a year. But is it worth taking these cash pay-outs and/or reinvesting them into shares that have declined for over half of my lifetime? Also, GSK has said it will cut this dividend next year. Hence, I’m seriously having second thoughts about holding on.

GSK’s latest results were pants

GlaxoSmithKline released its latest quarterly results yesterday. Initially, the GSK share price leapt to a high of nearly 1,370p, before falling back to close at 1,336.6p (down 0.2p). It was the same old story at GSK of declining revenues (down 18% to £7.4bn) and falling earnings per share (down a whopping 32% to 21.5p). Yikes.

Today, my main worry with GSK is concern about the company’s upper management. Every GSK ‘lifer’ I speak with is disillusioned with the strategy, vision, and competence of GSK’s directors and senior managers. For me, it sounds like GSK desperately needs the kick up the rear that activist investor Elliott Associates could provide! In the meantime, I will hold onto my GSK stock for now.

Cliffdarcy owns shares of GlaxoSmithKline. 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

Sunrise over Earth
Investing Articles

Meet the ex-penny share up 109% that has topped Rolls-Royce and Nvidia in 2025

The share price of this investment trust has gone from pennies to above £1 over the past couple of years.…

Read more »

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

1 of the FTSE 100’s most reliable dividend stocks for me to buy now?

With most dividend stocks with 6.5% yields, there's a problem with the underlying business. But LondonMetric Property is a rare…

Read more »

Investing Articles

Is 2026 the year to consider buying oil stocks?

The time to buy cyclical stocks is when they're out of fashion with investors. And that looks to be the…

Read more »

ISA coins
Investing Articles

3 reasons I’m skipping a Cash ISA in 2026

Putting money into a Cash ISA can feel safe. But in 2026 and beyond, that comfort could come at a…

Read more »

US Stock

I asked ChatGPT if the Tesla share price could outperform Nvidia in 2026, with this result!

Jon Smith considers the performance of the Tesla share price against Nvidia stock and compares his view for next year…

Read more »

Investing Articles

Greggs: is this FTSE 250 stock about to crash again in 2026?

After this FTSE 250 stock crashed in 2025, our writer wonders if it will do the same in 2026. Or…

Read more »

Investing Articles

7%+ yields! Here are 3 major UK dividend share forecasts for 2026 and beyond

Mark Hartley checks forecasts and considers the long-term passive income potential of three of the UK's most popular dividend shares.

Read more »

Hand is turning a dice and changes the direction of an arrow symbolizing that the value of an ETF (Exchange Traded Fund) is going up (or vice versa)
Investing Articles

2 top ETFs to consider for an ISA in 2026

Here are two very different ETFs -- one set to ride the global robotics boom, the other offering a juicy…

Read more »