Up 26% in a month and it’s not BP or BAE Systems! Check out the month’s biggest FTSE 100 winner

Harvey Jones is surprised to see which FTSE 100 stock is leading the charge in today’s volatile market. But have investors left it too late to benefit?

| 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.

Abstract 3d arrows with rocket

Image source: Getty Images

As the Iran war rattles the FTSE 100, weapons maker BAE Systems looks like the obvious beneficiary. Its shares have surged 20% in the last month. Yet it’s only the second-best performer on the blue-chip index.

Energy giants are also thriving. With oil pushing towards $100 a barrel and some analysts talking about $150 or even $200, BP and Shell are up 15% over the month. They rank third and fourth among the top performers.

RELX shares are racing back

Yet all three trail the month’s real winner. Step forward RELX (LSE: REL), the data and analytics specialist whose shares have jumped 26% in just four weeks. It’s an eye-catching rally for a company that only recently sat at the centre of a fierce debate about artificial intelligence. But can its surge last?

RELX has been a super FTSE 100 success story. The group supplies specialist data, analytics, and research tools to industries including law, insurance, finance, and science. Its databases and software help professionals analyse risk, manage compliance, and carry out complex research.

That steady flow of subscription revenue helped turn RELX into a top 10 London-listed company, with a market value of roughly £65bn at its peak. The shares delivered a blend of reliable growth and rising income.

But when ChatGPT burst onto the scene in late 2023, investors feared powerful generative AI tools might replace expensive specialist databases. If chatbots could instantly answer complex questions, would companies still pay for RELX’s services?

The concern faded after management argued that its vast datasets would remain valuable and new AI tools could make them even more powerful. But when US company Anthropic released an AI-powered productivity tool for companies’ in-house legal teams in February, investors panicked again. Despite the recent jump, they’re still down 30% over 12 months.

Strong numbers steady nerves

Confidence strengthened after RELX reported solid results on 12 February. Underlying operating profit rose 9% to £3.3bn. Management reported strong demand across most divisions. It also stressed that it’s building more AI functionality into its platforms while keeping cost growth below revenue growth. A £2.25bn share buyback across 2026 helped fuel the recovery.

Despite the rally, the shares remain cheaper than they were. The price-to-earnings ratio now sits around 20. Not long ago it traded above 30. The dividend yield has edged up to 2.6%.

AI is evolving rapidly and it’s impossible to know exactly how big a threat it poses. RELX believes its data depth and industry relationships give it strong protection. Fewer hallucinations too, I would imagine.

The RELX rally appears to have eased, so bargain seekers may have missed the point of maximum opportunity. I still think it’s worth considering for those who believe AI will struggle to replicate RELX’s specialist data. But I also fear AI will continue to cast a shadow, and we may see further panics, as new software is released.

RELX remains an impressive business, but I’m wary. Plenty of other beaten-down companies are trading at tempting valuations in today’s volatile market. I’ll focus my efforts on them instead.

Harvey Jones has positions in BAE Systems and Bp P.l.c. The Motley Fool UK has recommended BAE Systems and RELX. 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

Man writing 'now' having crossed out 'later', 'tomorrow' and 'next week'
Investing Articles

The best time to buy stocks? It might be right now

Short-term issues that delay long-term trends create opportunities to buy stocks. And that could be happening right now with a…

Read more »

Queen Street, one of Cardiff's main shopping streets, busy with Saturday shoppers.
Investing Articles

Here’s why Next stock rose 5% and topped the FTSE 100 today

Next was the leading FTSE 100 stock today, rising 5%. Our writer takes a look at why and asks if…

Read more »

Renewable energies concept collage
Investing Articles

Up 458% in a year, could the Ceres Power share price go even higher?

Christopher Ruane reviews some highs and lows of the Ceres Power share price over the years and wonders whether the…

Read more »

Rolls-Royce's Pearl 10X engine series
Investing Articles

Are the glory days over for Rolls-Royce shares?

Rolls-Royce shares have soared in recent years. Lately, though, they have taken a tumble. Could there be worse still to…

Read more »

Group of friends meet up in a pub
Investing Articles

Are ‘66% off’ Diageo shares a once-in-a-decade opportunity?

Diageo shares have taken another hit in the early weeks of 2026. Are we looking at a massive bargain or…

Read more »

Investing Articles

Meet the UK stock under £1.50 smashing Rolls-Royce shares over the past year

While Rolls-Royce shares get all the attention, this under-the-radar trust has quietly made investors a fortune. But is it still…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

Down 19%, the red lights are flashing for Barclays shares!

Barclays shares have fallen almost a fifth in value as the Middle East war has intensified. Royston Wild argues that…

Read more »

Aviva logo on glass meeting room door
Investing Articles

After falling another 5%, are Aviva shares too cheap to ignore?

£10,000 invested in Aviva shares five years ago would have grown 50% by now. But what might the future hold,…

Read more »