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.

Could this growing threat cause a FTSE 100 stock market crash?

This Fool explains why this growing economic challenge could affect the FTSE 100 and cause a stock market crash.

Businessman looking at a red arrow crashing through the floor

Image source: Getty Images.

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!.

There is a growing threat in the global economy that I believe could cause an FTSE 100 stock market crash. Many investors are currently concentrating on risks, such as inflation and rising interest rates. Nevertheless, there is another challenge in the background that analysts, and the broader markets, seem to be overlooking. 

This challenge could overwhelm the global financial system and cause a significant economic depression if left unchecked. 

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.

FTSE 100 threat

The FTSE 100 is a relatively unique index. The majority of its constituents are resource and banking stocks. This means the index is particularly exposed to economic shocks, as these two sectors tend to feel the pain more than any other industries.

One of the most significant risks to global economic growth at present is debt. Since the financial crisis, global debt has been rising, and growth really accelerated during the pandemic. 

This was not such an issue when interest rates were pinned to the ground. However, now that central banks are starting to increase interest rates to deal with rising inflation pressures, these debt mountains could become a problem. 

Unfortunately, this risk is already having an impact on the global economy. Several highly indebted Chinese property developers have become insolvent over the past couple of months, which has impacted China’s giant property sector.

China’s construction market consumes a vast amount of resources every year. And if demand drops significantly, commodity prices may slump. This would hit profits at companies like Rio Tinto, a principal FTSE 100 constituent. A Chinese crisis could also hit profits at HSBC, another major player in the blue-chip index. Depending on the scale of the losses, these headwinds could cause a stock market crash. 

And the impact of these insolvencies is already being felt around the world. A construction project in London’s Battersea region has ground to a halt after its Chinese owner stopped paying contractors. It is unclear how this development will hit the already fragile UK construction industry. 

Other emerging economies are also struggling with rising debt levels. They may have to significantly reduce spending and increase taxes to meet their obligations to creditors. These changes may have a knock-on impact on their economies. 

Stock market crash risks

While debt levels are a growing threat to the global economy, it is not all bad news. Some corporations are holding record levels of cash. The private equity industry is also sitting on a record amount of cash, or so-called dry powder. These investors could step in to rescue companies struggling to meet their obligations. These buyers could help offset the negative impact of a debt-induced FTSE 100 stock market crash.

What’s more, while I believe that rising debt levels have the potential to cause a stock market crash, as a long-term investor I am not bothered about short-term market headlines. I concentrate on long-term fundamental growth factors, and I am excited about the potential for the global economy over the next decade. 

As such, while I plan to keep an eye on debt risks, I will not let these challenges dictate my investing actions. 

Rupert Hargreaves has no position in any of the shares mentioned. The Motley Fool UK has recommended HSBC Holdings. 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

Young Caucasian man making doubtful face at camera
Investing Articles

SpaceX stock has halved in weeks. Could it quickly double again?

What goes down doesn't necessarily come up. After its recent crash, this writer does see a possible way back for…

Read more »

Engineers in data centre using device, verifying firewall configurations. Teamworking IT professionals performing equipment vulnerability scans in server hub using tablet
Investing Articles

Meet the Legal & General ETF crushing the FTSE 100 index in 2026 

Ben McPoland highlights a thematic ETF that has beaten the FTSE 100 index by a wide margin recently. But is…

Read more »

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

Here’s what £500 invested in Rolls-Royce shares a year ago is worth now

Christopher Ruane looks at how Rolls-Royce shares have outperformed the market over the past year -- and explains whether he…

Read more »

Investing Articles

Prediction: by August 2027 the BT share price and dividend could turn £9,999 into…

The BT share price has retreated in recent weeks. Now Harvey Jones checks out the FTSE 100 company's income and…

Read more »

Young Asian woman holding a cup of takeaway coffee and folders containing paperwork, on her way into the office
US Stock

£3,846 invested in Micron stock now could be worth this much by summer 2027

Jon Smith makes a call on where he sees Micron stock potentially trading over the coming year and weighs this…

Read more »

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

Here’s why the Diageo share price is up 10.5% since 1 July

The Diageo share price has outperformed the FTSE 100 this month. But is this yet another false dawn for long-suffering…

Read more »

Warhammer World gathering
Investing Articles

My favourite FTSE 100 stock just got cheaper. Time to consider buying?

Paul Summers checks out the latest set of full-year numbers from this highly-profitable FTSE 100 stock. What's got investors spooked?

Read more »

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

By mid-2027, £5,000 in this FTSE 250 stock could grow to £8,200, if analysts are right

FTSE 250 stock Raspberry Pi is up almost 50% over the last year. And analysts at Peel Hunt expect the…

Read more »