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.

How a stronger pound could affect your FTSE 100 investments

The Brexit saga goes on yet FTSE 100 (INDEXFTSE: UKX) fans should still invest regularly without paying too much attention to the daily noise in the markets.

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.

As we all wait to find out what may be next in the Brexit saga, I’d like to discuss how gyrations in the pound against other currencies could especially affect the value of British companies in your portfolio.

The pound has suffered since 2016

Financial markets despise uncertainty and the developments surrounding Brexit have been less than certain. And it’s caused considerable volatility in exchange rate markets. 

XXX

Following the referendum result in June 2016, the pound’s dramatic fall started. For example, the value of sterling relative to the US dollar fell from about $1.47 to $1.22 just five months after the referendum.

The pound also fell sharply against other currencies, especially the euro. On 22 June 2016, the pound was about 1.30 to the euro. In November 2016, it was about 1.16. 

Now the pound finds support

In the early weeks of the Brexit result, traders’ jitters sent the value of the pound to levels not seen since mid-1980s. And now over the past few weeks, sterling has rallied to a recent high as no-deal Brexit fears have begun to recede.

Today, the pound remains better supported, with markets showing increased confidence that there may soon be a resolution to the whole Brexit saga.

This improved sentiment is reflected in the value of the pound. Against the US dollar, it’s just shy of $1.30 and against the euro, it trades around 1.16.

The pound and the FTSE 100

Most of the FTSE 100 companies are multinational conglomerates and up to three-quarters of their revenue comes from overseas. 

Therefore a weak pound isn’t necessarily bad for sales. In simple terms, a devaluation of the pound would make British goods cheaper to buy, potentially boosting the amount of UK exports overall.

When the pound falls, especially significantly, their sterling-denominated earnings rise considerably. The dollars and euros they’re earning outside the UK become worth more pounds, leading to an increase in profitability.

That said, a weaker pound also makes imported raw materials more expensive. And the increased costs eventually get passed down to the consumer. And the reverse relationship holds when the pound goes up.

Yet it’s hard to pinpoint if the “export effect” or “increase in costs” dominates, and whether investors respond equally to all firms in the FTSE 100.

Relative effects of exchange rate movements also tend to be less clear-cut for the companies in the FTSE 250 index as they usually have a more domestic focus. They’re more directly affected by shorter-term developments in the economy and consumer sentiment.

Therefore, FTSE 250 shares are likely to benefit when we have more clarity as to how our relationship with the EU will look like in 2020 and beyond.

The Foolish bottom line

There are many reasons for exchange rates to move on a daily basis. But, over long periods, they tend to respond to macroeconomic fundamentals.

The task of unwinding the deep trade, political, and social links established with the EU in almost half a century will likely have long-lasting effects on the UK economy and the pound.

However, it’s anyone’s guess as to how the pound may react to the political developments in the rest of the year. So what can the average investor do as the pound gyrates? I’d keep calm and keep investing regularly in good companies. 

Views expressed 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 »