Will a positive Brexit outcome send the FTSE 100 crashing below 6,500?

The FTSE 100 (INDEXFTSE: UKX) may crash if sterling continues to get stronger.

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.

Over the past few weeks, comments from policymakers at the Bank of England have reignited confidence in the pound and sent the value of sterling against the US dollar back to $1.30, a level not seen since mid-May.

Sterling has rallied on the back of the belief that the Bank of England will raise interest rates towards the end of the year. The bank cut rates following Brexit in an attempt to stimulate economic growth, but so far, growth has held up despite the uncertainty surrounding the general election and Brexit. The value of the currency could continue to appreciate if Brexit turns out to be beneficial for the UK.

This is mixed news for investors. On one hand, a strong economy is good for business and investment returns. However, on the other hand over the past year, the majority of the FTSE 100’s gains have come from the stimulative effect of the weak pound. As the majority of FTSE 100 earnings come from outside the UK, earnings have grown thanks to better conversion rates.

This stimulative effect will evaporate as the value of the pound improves ,and as earnings return to historical levels it is likely the FTSE 100 will fall back as well.

Sterling boost

To see just how much of a stimulative effect the weak pound has had on the FTSE 100, all you need to do is look at the index in dollar terms. 

On a dollar basis, between 23 June 2016 and the end of March this year, the value of the index declined by around 2.5%. In sterling terms over the same period, the FTSE 100 added a little more than 15%, a divergence of 17.5%.

Given the fact that the FTSE 100 was trading at 6,138 before the result of the referendum became known, we can assume that the actual value of the index without the sterling readjustment would have been closer to 6,000 than 7,000 at the end of March. If sterling continues to appreciate in value it is more than likely that all of the FTSE 100’s post-Brexit gains will evaporate, pushing the index back down below 6,500 and closer to 6,000, a decline of 18% from current levels.

The best stocks for an uncertain time

The best way to protect yourself from such a decline is to invest in the market’s most defensive companies, businesses that have seen their share prices appreciate recently thanks to both improving business performance and weaker sterling. 

Companies such as Unilever, which has benefitted from the pound’s depreciation but has also recently embarked on a plan to improve margins, return more cash to investors and boost growth. Domestic-focused companies such as Lloyds will also provide a safe haven in stormy waters. 

Lloyds’ earnings have not seen any benefit from weaker sterling. The company’s improving fundamentals have been almost entirely responsible for share price growth and investors are also buying into the business for its income potential.

The bottom line 

So overall, as sterling strengthens the FTSE 100 may retrace some of its gains. The best way to avoid losses from this decline is to invest in the market’s most fundamentally sound businesses with the best outlooks.

Rupert Hargreaves has no position in any shares mentioned. The Motley Fool UK owns shares of and has recommended Unilever. The Motley Fool UK has recommended Lloyds Banking Group. 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 Black woman using a debit card at an ATM to withdraw money
Investing Articles

Meet the FTSE 100’s newest bank stock

This FTSE 250 stock has skyrocketed nearly 900% over the past 60 months, earning it a place in the prestigious…

Read more »

Investing Articles

See what £10,000 invested in Shell shares 1 month ago is worth now

Harvey Jones looks at how Shell shares have fared over the past month and more importantly, what the long-term outlook…

Read more »

Finger clicking a button marked 'Buy' on a keyboard
Growth Shares

At its lowest level since July, here’s why I think the IAG share price is dead cheap

Jon Smith explains why the IAG share price has fallen over the past week but talks through the reasons why…

Read more »

Picture of an easyJet plane taking off.
Investing Articles

Will the easyJet share price rise 43% or 97% by this time next year?

City analysts believe easyJet's share price might almost double over the next year. Royston Wild considers the outlook for the…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

More great news for Rolls-Royce shares!

Rolls-Royce shares got a boost this week after some intriguing developments in the process of creating Europe's new fighter aircraft.

Read more »

Arrow symbol glowing amid black arrow symbols on black background.
Investing Articles

Persimmon’s share price surges 7% on double boost! Can it keep rising?

Persimmon's share price is surging, up 11% at one point earlier on Tuesday. Could this be the start of a…

Read more »

This way, That way, The other way - pointing in different directions
Investing Articles

What on earth’s happening to the Greggs share price?

Harvey Jones says Greggs’ share price has shown surprising resilience in the recent stock market turmoil, but the FTSE 250…

Read more »

Mature black woman at home texting on her cell phone while sitting on the couch
Investing Articles

Barclays shares are down 18%. Time to consider buying?

Barclays’ shares have plummeted in recent weeks. Edward Sheldon looks at what’s going on and provides his view on the…

Read more »