Why the pound and the FTSE 100 are set to sink if Jeremy Corbyn wins the election

A Labour victory could create uncertainty for the FTSE 100 (INDEXFTSE:UKX) and for sterling.

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 a Labour victory in the General Election may still be highly unlikely, there has been a clear surge in support for Jeremy Corbyn in recent weeks. The Labour party has been able to narrow the Conservative party’s lead significantly, with YouGov now forecasting a hung parliament.

Therefore, if Labour’s momentum continues into Thursday’s election, the party could gain a considerable number of seats. While this may be viewed as a positive event by many voters in the UK, investors may think otherwise.

Sterling

Perhaps the most obvious impact of a strong result or even a victory for Labour could be a decline in the value of sterling. While many of Labour’s policies may prove to be successful in the long run, ultimately they represent a major change from the status quo. For example, Jeremy Corbyn plans to nationalise a number of industries, including energy suppliers and rail companies. This could create a significant amount of uncertainty and even fear among investors, as they look ahead to which other companies and industries could become state-owned.

The Labour party is also seeking to change tax rates. While they may only effect top earners directly, increases to corporation tax could lead to lower business confidence in future. The UK’s status as a popular place for international companies to do business may come under pressure, which could lead to further downgrades in the UK’s economic outlook.

Just as the aftermath of Brexit saw a weaker pound emerge, a Labour victory could do likewise. That’s not because the policies they are seeking to adopt will necessarily be unsuccessful in achieving their objectives, but rather because they represent change. Investors have historically been averse to major change.

FTSE 100

The effect on the FTSE 100 of a strong Labour result or even victory in the upcoming election is possibly less clear than for sterling. One the one hand, increased uncertainty and fear among investors could cause sentiment towards UK-focused stocks to come under pressure. However, on the other hand a depreciation of the pound could lead to rising profitability and share prices for international companies which report in sterling.

Overall, though, the decline in investor sentiment is likely to more than offset the gains made by a possible depreciation of sterling. Although the FTSE 100 is made up of international companies, many of its incumbents still rely on the UK for a sizeable part of their sales and profitability. Furthermore, if business confidence in the UK falls after the election result, it could lead to a knock-on effect in Europe and the rest of the world at a time when risks to world growth are already high.

Looking ahead

While a Labour victory may be unlikely, a strong campaign by Jeremy Corbyn has made the outcome of the election harder to predict. A good performance by Labour could lead to falls for the FTSE 100 and for sterling, which may create significant uncertainty for investors in the short run. However, while this may be a challenging period, it could present a buying opportunity for investors who can focus on company fundamentals, diversity and, most importantly, the long run.

More on Investing Articles

Front view of aircraft in flight.
Investing Articles

Is it game over for the BP share price rally?

The BP share price has looked like a one-way bet in recent weeks as oil and gas prices soar but…

Read more »

Man hanging in the balance over a log at seaside in Scotland
Investing Articles

Amid geopolitical and AI risks, here’s how I’m positioning my ISA and SIPP in 2026

Edward Sheldon explains how he's allocating capital within his investment accounts and SIPP amid the various risks to the market.

Read more »

Young mixed-race woman looking out of the window with a look of consternation on her face
Investing Articles

My game plan for the next stock market crash

Markets have been surprisingly resilient during the recent Middle East conflict but we still cannot rule out a stock market…

Read more »

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

1 top growth stock to consider buying after it crashed 59%

This S&P 500 growth stock has fallen off a cliff lately due to AI software fears. Our writer thinks this…

Read more »

A mature woman help a senior woman out of a car as she takes her to the shops.
Investing Articles

Here’s how a 35-year-old putting £15 a day into an ISA could end up earning £18k+ of passive income annually!

A 35-year-old with no ISA but a willingness to invest relatively small sums could one day be earning many thousands…

Read more »

Young black colleagues high-fiving each other at work
Investing Articles

With the potential to double in 10 years, this could be a dividend stock to consider buying

With a yield of 7.2%, income investors might consider buying this stock. But reinvesting the dividends could deliver even more…

Read more »

Happy couple showing relief at news
Investing Articles

How much would someone need to invest in the stock market to target a £1,250 monthly second income?

Investing in the stock market can help deliver long-term wealth. But James Beard says it can also be a way…

Read more »

happy senior couple using a laptop in their living room to look at their financial budgets
Investing Articles

How much would someone need in an ISA to aim to treble the current State Pension?

Experts say the State Pension isn’t generous enough to provide a comfortable retirement. James Beard says the stock market could…

Read more »