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.

When this FTSE 100 share drops below £16, I’d buy it every single time…

When this FTSE 100 share drops below £16, its dividend yield rises above 5%. Today, it’s slid below £15.50, making me a buyer once again.

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

Legendary US fund manager Peter Lynch once wisely remarked, “Never fall in love with a stock; always have an open mind”. But it’s fair to say that many investors do have favourite shares – and one of mine is a pillar of the FTSE 100.

My favourite FTSE 100 shares keep falling

In recent weeks, I have repeatedly written about FTSE 100 stocks that I consider ideally suited for value and income-seeking investors. The pattern seems to be: I write about a ‘bargain bin’ FTSE 100 stock, its price falls, and the share becomes even cheaper.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

Of course, I’m not afflicted by any kind of stock-picking curse. The root cause is the fact that the wider FTSE 100 index has fallen roughly 470 points (7.25%) since its recent peak on 5 June. Also, my style of value and dividend-driven investing is very much out of favour these days.

GlaxoSmithKline is a dividend dynamo

High on my list of favourite FTSE 100 shares is British pharmaceutical giant GlaxoSmithKline (LSE: GSK). I’ve owned GlaxoSmithKline shares for most of the past 30 years, going back to the early 1990s.

Perhaps, as Peter Lynch cautioned, I’ve fallen in love with this stock and have become biased and blind to GSK’s faults? I honestly don’t think this is the case, because this FTSE 100 share stacks up, no matter which way I analyse the underlying business.

As I write, and in today’s falling market, GSK shares trade at £15.48, down 25p (1.6%) since yesterday’s close. Therefore, GSK is worth around £1.2bn less today than it was yesterday (but on no new corporate information and for no particular reason).

My 5% Rule for GSK

Having watched GSK grow enormously since the 1980s, I’ve adopted what I call my ‘5% Rule’ for buying this FTSE 100 share.

For the past five years, GSK has paid a rock-steady dividend of 80p a share (plus a special dividend of 20p for 2015). At £16 a share, this equates to a dividend yield of 5%. Thus, when GSK shares drop below £16, their yield exceeds 5%. Conversely, the yield falls below 5% when GSK’s share price exceeds £16.

At today’s price of £15.48, GSK’s dividend yield has crept up to 5.17%, while its market value has declined to £78.9bn. Hence, according to my 5% Rule, GSK is now back in buying territory.

GSK is a FTSE 100 dividend beast

With almost 5bn shares in issue, paying out 80p a share in cash dividends costs this FTSE 100 firm around £4bn a year. This makes GSK one of the FTSE 100’s top-five dividend players. In fact, GSK’s dividend alone will account for up to 7% of total dividends paid by all UK-listed companies this year. This incredible figure demonstrates GSK’s sheer financial strength.

GSK’s next dividend of 19p will be paid on 8 October to investors who own this FTSE 100 share on 13 August.

GSK shares are cheap

Ignoring my ownership bias and long history with GSK, would I buy its shares today? Indeed I would, because the business is doing well and has a bright future. Yet GSK shares are down 6% in the past 12 months and are over £3 cheaper than their 52-week high of £18.57 hit on 24 January.

During the market’s March meltdown, GSK shares tumbled to £13.28 (on 16 March), boosting their dividend yield to above 6%. They were a bargain at the time and, based on my 5% Rule, my family bought even more.

Today, GSK shares trade on a price-to-earnings ratio of 11.8 and offer a dividend yield approaching 5.2%. Hence, I would buy and hold this FTSE 100 value share until the cows come home.

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

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

How investing £4.50 a day could set you on the way to a £1,505 monthly second income

How can UK stocks with high dividend yields help investors earn a meaningful second income from the price of a…

Read more »

Investing Articles

Up 103% with a P/E of 261 — is this FTSE 100 stock still worth buying?

One FTSE 100 stock is quietly moving higher while most investors are still looking elsewhere — is the market missing…

Read more »

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

The smart money thinks AI stocks look risky — but is there still a chance to buy?

According to fund managers, the AI trade is getting crowded. But they still seem to think it’s the place to…

Read more »

Man putting his card into an ATM machine while his son sits in a stroller beside him.
Investing Articles

Barclays shares are 11% below their 52-week high. Could they be a bit of a bargain to consider?

Overpriced or one of the FTSE 100’s hidden gems? James Beard takes a closer look at how the market is…

Read more »

Stack of one pound coins falling over
Investing Articles

Down 65% but yielding 6.7% – is this beaten-down UK stock now a generational bargain?

Harvey Jones says this UK stock is one of the worst FTSE 100 performers but there are sound reasons to…

Read more »

Portrait of elderly man wearing white denim shirt and glasses looking up with hand on chin. Thoughtful senior entrepreneur, studio shot against grey background.
Investing Articles

Is this FTSE stock really 46% undervalued?

Analysts reckon this FTSE stock should be worth nearly 50% more. James Beard considers why there’s so much positivity surrounding…

Read more »

Front view of a young couple walking down terraced Street in Whitley Bay in the north-east of England they are heading into the town centre and deciding which shops to go to they are also holding hands and carrying bags over their shoulders.
Investing Articles

How much is needed in an ISA for passive income that covers the UK’s monthly average rent of £1,381?

The UK’s monthly average rent for May 2026 is £1,381. Muhammad Cheema looks at how much is needed to aim…

Read more »

A rear view of a female in a bright yellow coat walking along the historic street known as The Shambles in York, UK which is a popular tourist destination in this Yorkshire city.
Investing Articles

How have BAE Systems shares become a dividend powerhouse? 5 reasons why!

Dividends on BAE Systems shares have risen every year without fail since the early 2000s. So what's the FTSE 100…

Read more »