Down 35% in a year, is this FTSE 100 stock a once-in-a-decade opportunity?

Spirax Group shares have been dreadful over the last five years. But could the FTSE 100 industrial manufacturer actually be ‘the next Rolls-Royce’?

| More 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.

Businesswoman calculating finances in an office

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.

Shares in Spirax Group (LSE:SPX) have fallen 35% in the last 12 months. But that puts the FTSE 100 stock in unusually attractive territory and there are some familiar themes emerging. 

A combination of increased debt, higher interest costs, and a cyclical downturn have been weighing on the business. But that looks a lot like the position Rolls-Royce was in at the end of the pandemic…

Overview

Spirax manufactures equipment that helps industrial operations like factories manage temperatures throughout their manufacturing processes. That might involve heating, cooling, or regulating.

Its systems are often highly technical and mission-critical for its customers. This means the business benefits from resilient strong demand while also being difficult for other companies to disrupt. 

Acquisitions have been key to Spirax’s growth over the last 10 years. By buying other businesses, it has expanded from steam-based solutions to include electric-based systems.

Doing so has allowed the firm to expand its installed base of systems significantly. And the servicing and maintenance of these has provided the company with long-term, high-margin revenues.

Debt and demand

All of this sounds good, so the obvious question is why’s the stock been falling? The answer is Spirax’s revenues, margins, and profits have all come under pressure over the last few years. 

Most recently, demand from China – a key industrial market – has faltered. That’s caused the FTSE 100 firm’s sales to decline in the last couple of years. 

Over the longer term, the company’s acqusitions have proved expensive. Spirax’s long-term debt’s gone from below £100m in 2016 to over £870m in 2024, which has caused interest costs to rise. 

As a result, margins have contracted and earnings growth has slowed and that’s a sign of the ongoing risks with the business. But I think investors might have room for optimism.

Valuation: a once-in-a-decade chance

The falling Spirax share price has put the stock in interesting territory. On a price-to-earnings (P/E) basis, it trades at a multiple of around 22. 

That’s unusually low for the company, though it’s not meaningfully below where it was in 2018. But earnings have been volatile and that can make the P/E ratio an unreliable guide to valuation.

In these situations, price-to-sales (P/S) and price-to-book (P/B) can be much more accurate metrics. And based on either of these, the stock’s trading at some of its lowest multiples in the last 10 years.

In other words, I think Spirax shares are unusually cheap at the moment. More importantly though, I think there are clear similarities the FTSE 100’s top-performing stock of the last five years.

The next Rolls-Royce?

At the end of the pandemic, Rolls-Royce had gone through a sharp drop in demand that had caused its debt to shoot up and its interest costs to surge. And we all know what’s happened since then.

I think it’s striking how similar the situation with Spirax is at the moment. To some extent, the firm’s problems are of its own making, but I think there could be similar opportunities ahead.

The stock’s a reminder of the risks that come with growth by acquisitions. But with its debt already starting to come down, investors should seriously consider whether now might be the time to buy.

Stephen Wright has no position in any of the shares mentioned. The Motley Fool UK has recommended 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

Investing Articles

With a huge 9% dividend yield, is this FTSE 250 passive income star simply unmissable?

This isn't the biggest dividend yield in the FTSE 250, not with a handful soaring above 10%. But it might…

Read more »

Finger clicking a button marked 'Buy' on a keyboard
Investing Articles

With a big 8.5% dividend yield, is this FTSE 100 passive income star unmissable?

We're looking at the biggest forecast dividend yield on the entire FTSE 100 here, so can it beat the market…

Read more »

Business manager working at a pub doing the accountancy and some paperwork using a laptop computer
Investing Articles

Why did the WH Smith share price just slump another 5%?

The latest news from WH Smith has just pushed the the travel retailer's share price down further in 2025, but…

Read more »

ISA coins
Investing Articles

How much would you need in a Stocks & Shares ISA to target a £2,000 monthly passive income?

How big would a Stocks and Shares ISA have to be to throw off thousands of pounds in passive income…

Read more »

Middle-aged white man wearing glasses, staring into space over the top of his laptop in a coffee shop
Investing Articles

£10,000 invested in Diageo shares 4 years ago is now worth…

Harvey Jones has taken an absolute beating from his investment in Diageo shares but is still wrestling with the temptation…

Read more »

Investing Articles

Dividend-paying FTSE shares had a bumper 2025! What should we expect in 2026?

Mark Hartley identifies some of 2025's best dividend-focused FTSE shares and highlights where he thinks income investors should focus in…

Read more »

piggy bank, searching with binoculars
Dividend Shares

How long could it take to double the value of an ISA using dividend shares?

Jon Smith explains that increasing the value of an ISA over time doesn't depend on the amount invested, but rather…

Read more »

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

£5,000 invested in Tesco shares 5 years ago is now worth this much…

Tesco share price growth has been just part of the total profit picture, but can our biggest supermarket handle the…

Read more »