Carillion plc isn’t the only stock I’ll be avoiding in 2018

Edward Sheldon looks at the most shorted stocks in the UK right now, including Carillion plc (LON: CLLN) and explains why he won’t be going anywhere near them in 2018.

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.

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.

While there are plenty of stocks I want to buy 2018, there are also several I’ll be steering clear of. Here’s a look at some of them.

Carillion

As far as dud investments go, it doesn’t get much better than Carillion (LSE: CLLN) this year. Shares in the construction services company have fallen from around 240p at the start of the year, to just 17p today. That’s a decline of a staggering 93%. What went wrong?

It all went downhill in July when the company released a nasty profit warning. It stated that a deterioration in cash flows on a number of construction contracts had led the board to undertake a review of the group’s material contracts. That review resulted in expected contract provisions of £845m.

But it got worse. A further profit warning in November revealed that profits for the year are expected to be “materially lower” than current market expectations. The company also said that it was expecting a covenant breach as at 31 December and that “some form of recapitalisation” would be required.

What a nightmare. I feel for investors who have lost money here. A 93% loss is extremely hard to recover from. To break even, you’d need a gain of a huge 975%.

Yet, there were warning signs here. A large proportion of the company’s shares were being shorted. I explained that in this article.

The lesson we can take away is that it’s always worth keeping an eye on the list of companies that are most shorted. Hedge funds and other sophisticated investors are betting on the share prices of these companies falling. And there’s usually a good reason why.

If a company has a seriously heavy short interest, just steer clear. It’s as simple as that. At one stage, 30% of Carillion’s shares were being shorted. This indicates that there was something drastically wrong with the company. And the shorters were right.

Looking at the short interest now, Carillion is still the most shorted stock in the UK, with 13 funds shorting it.

For this reason, I won’t be investing in Carillion any time soon. 

Other shorted stocks to avoid

So what are the other most shorted stocks in the UK right now? From Shorttracker here’s the top 10 most shorted stocks.

Company % short Number of funds short
CARILLION PLC 16.60% 13
DEBENHAMS PLC 14.30% 8
OCADO GROUP PLC 14.30% 11
WM MORRISON SUPERMARKETS 12.00% 12
PREMIER OIL PLC 11.30% 5
SAINSBURY (J) PLC 11.20% 10
MARKS & SPENCER GROUP PLC 10.90% 12
PEOPLE’S OPERATOR PLC (THE) 10.60% 1
AGGREKO PLC 10.50% 8
TELIT COMMUNICATIONS PLC 10.40% 4

Source: Shorttracker. Data as of 20/12.  

You can see that there’s a strong focus on the UK high street there, with companies such as Debenhams, WM Morrison Supermarkets and Marks & Spencer Group all making the list.

One stock that looks particularly dangerous to me is Ocado. While the company has exciting growth prospects, the valuation just looks way too high, in my opinion. Expected earnings of 1.56p next year place the stock on a forward P/E of 230. That’s a recipe for disaster. As a result, the chances are I won’t be buying Ocado shares next year.

Edward Sheldon has no position in any shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. 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

Group of young friends toasting each other with beers in a pub
Investing Articles

FTSE 100 shares: has a once-a-decade chance to build wealth ended?

The FTSE 100 index has had a strong 2025. But that doesn't mean there might not still be some bargain…

Read more »

Passive income text with pin graph chart on business table
Investing Articles

I asked ChatGPT for its top passive income ideas for 2026 and it said…

Stephen Wright is looking for passive income ideas for 2026. But can asking artificial intelligence for insights offer anything valuable?

Read more »

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

Here’s how a 10-share SIPP could combine both growth and income opportunities!

Juggling the prospects of growth and dividend income within one SIPP can take some effort. Our writer shares his thoughts…

Read more »

Tabletop model of a bear sat on desk in front of monitors showing stock charts
Investing Articles

The stock market might crash in 2026. Here’s why I’m not worried

When Michael Burry forecasts a crash, the stock market takes notice. But do long-term investors actually need to worry about…

Read more »

Person holding magnifying glass over important document, reading the small print
Investing Articles

Is this FTSE 250 retailer set for a dramatic recovery in 2026?

FTSE 250 retailer WH Smith is moving on from the accounting issues that have weighed on it in 2025. But…

Read more »

Young Black woman using a debit card at an ATM to withdraw money
Investing Articles

I’m racing to buy dirt cheap income stocks before it’s too late

Income stocks are set to have a terrific year in 2026 with multiple tailwinds supporting dividend growth. Here's what Zaven…

Read more »

ISA Individual Savings Account
Investing Articles

Aiming for a £1k passive income? Here’s how much you’d need in an ISA

Mark Hartley does the maths to calculate how much an investor would need in an ISA when aiming for a…

Read more »

Two business people sitting at cafe working on new project using laptop. Young businesswoman taking notes and businessman working on laptop computer.
Investing Articles

Is investing £5,000 enough to earn a £1,000 second income?

Want to start earning a second income in the stock market? Zaven Boyrazian breaks down how investors can aim to…

Read more »