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.

£10,000 invested in this FTSE 100 stock last Christmas is now worth…

Our writer takes a closer look at a FTSE 100 stock that’s made spectacular gains in 2025. Will the rally continue – and if not, why not?

| More on:
Road 2025 to 2032 new year direction concept

Image source: Getty Images

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.

Airtel Africa‘s (LSE: AAF) the second-best performing stock on the FTSE 100 this year, second only to gold miner Fresnillo. Since last Christmas, it’s up over 200%, meaning a £10,000 investment would have skyrocketed to over £30,100 today. With regular returns like that, an investor could retire early!

But aside from a few rare outliers like Rolls-Royce, that kind of growth doesn’t happen often. And it seldom happens consistently for several years in a row. Which has me asking myself: should I buy more Airtel Africa shares, or take profit before an ‘inevitable’ correction?

XXX
Chart showing the 1-year performance of the FTSE 100 stock Airtel Africa
Created on TradingView.com

I’m still kicking myself for selling my Rolls shares too soon, so I won’t make that mistake again. Rather, let’s take a long, hard look at the company’s financial position and figure out exactly what’s going on.

A new year ahead

It’s fair to say that Airtel Africa’s heading into 2026 with significant momentum, following a remarkable turnaround in 2025. In the first half, net profit surged 375% and revenue grew 26% to $2.98bn. A lot of this growth follows a strategic pivot towards data services and mobile money (Airtel Money), which has proven highly successful.

The Money segment now accounts for 21% of group revenue and transaction volumes, reaching $193bn annually. It even has plans for a fintech arm IPO in early 2026, which could unlock further value and provide capital for continued expansion.

That’s probably the strongest argument for continued growth in 2026. But there’s more!

Africa not only has low digital penetration but also a rapidly growing, youthful population. This equates to a long runway for subscriber and revenue growth. Network investments, including 98.5% 4G coverage and early 5G rollouts, put Airtel in a unique position to capture an increasing demand for data services.

On the flip side?

Africa’s long been a region offering a wealth of untapped opportunity — but with that potential reward comes notable risks.

Currency fluctuations in Nigeria are an ongoing issue that can affect reported earnings, along with political instability. Africa’s also a challenging region to work in, with regulatory uncertainty already delaying the company’s fibre network rollouts in some areas.

But my main concern is Airtel’s high valuation. With a forward price-to-earnings (P/E) ratio of 30, it’s going to be hard to find room for more growth. Even Fresnillo’s forward P/E’s lower than that, suggesting analysts expect gold demand to outpace Africa’s data needs in 2026.

My verdict

While I remain optimistic about the company’s long-term prospects, I’d be surprised to see this exceptional rally continue into 2026. Admittedly, I say that while acknowledging that Rolls-Royce did exactly that in 2024 and again this year.

But past performance is no indication of future results — especially that of two vastly different companies. Looking at Airtel’s valuation, a mild correction in 2026 is quite possible — so I wouldn’t expect another 200%+ year.

Still, for long-term investors keen on exposure to Africa’s exploding data market, I think Airtel Africa’s one of the most compelling options to consider. I’d be very surprised if it didn’t enjoy significant growth in the coming decade, making any small decline in 2026 nothing more than a blip on the radar.

Mark Hartley has positions in Airtel Africa Plc. The Motley Fool UK has recommended Airtel Africa Plc, Fresnillo Plc, and Rolls-Royce Plc. 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

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

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

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »