What stocks should you buy (and sell) if Boris Johnson becomes PM? Part one

Royston Wild considers some of the possible thrivers and fallers should Boris Johnson rise to the top of British politics next month.

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.

We’re a little over a month away from when Conservative Party members will select the next leader of their party, and by extension the next prime minister of the United Kingdom, on July 22.

The well-trodden maxim is that a week is a long time in politics, but in the Brexit-dominated political cauldron, seven days can be described more like an entire era. Even so, it would take a braver man than me to bet against Boris Johnson strolling into Number 10 late next month. Bookmaker Ladbrokes currently puts the member of parliament for Uxbridge and South Ruislip at a staggering 1/6 to replace the much-maligned Theresa May.

So what stocks do I think you should buy (and sell) in the event of Johnson becoming the next PM?

Go defensive

One good idea would be to load up on defence stocks, in my opinion.

Industry giants like BAE Systems (LSE:BA) are perfect buys for this moment in time given their popularity in challenging macroeconomic and worrying geopolitical times like these, their popularity reflecting the resilient demand for their products, whatever the weather. And Boris’s likely ascension to the political summit could give them a further dose of rocket fuel.

Why? Well in February he contributed to a report calling for the UK’s foreign aid budget to “do more to serve the political and commercial interests of the country.” This could see the cost of military peacekeeping missions come out of the international aid pot and free up extra cash for the Ministry of Defence.

But BAE Systems isn’t the only stock that could fly, of course. MeggittAvon Rubber and Ultra Electronics could also pick up some momentum in the weeks ahead.

Water way to fall

Whether you’re a fan or a critic of Boris, few would argue that he’s the most polarising political figure in the leadership contest right now, if not the whole of Westminster. There’s no shortage of people in his own party who despise the fellow, after all, from ministers who have vowed never to serve in a Johnson cabinet (like international development secretary Rory Stewart), to backbenchers (like the influential Dominic Grieve) who have pledged to leave the party altogether.

It’s not a shock to see many inside and outside the SW1 bubble predicting that the government could collapse within weeks of him entering Downing Street. And with that comes the prospect of a Jeremy Corbyn government and an overhaul of the utilities sector.

So what would I not buy now? The policies of the modern Labour Party have already brought Centrica and SSE into the crosshairs, reflecting the intensifying criticism of the big dividends on offer for shareholders in these firms when families are really feeling the pinch.

National Grid has more recently been targeted very publicly by the Queen’s official opposition, and while the water companies like Pennon Group and United Utilities may not have commanded the sort of column inches that the electricity providers have, they also face the prospect of re-nationalisation under a Corbyn administration. And possibly below market value, too.

Part Two of this article will follow on Wednesday, June 19.

Royston Wild has no position in any of the shares mentioned. The Motley Fool UK has recommended Avon Rubber, Meggitt, and Pennon 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

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

£5,000 invested in Tesco shares 5 years ago is now worth this much…

Tesco share price growth has been just part of the total profit picture, but can our biggest supermarket handle the…

Read more »

Investing Articles

Here’s why I’m bullish on the FTSE 100 for 2026

There's every chance the FTSE 100 will set new record highs next year. In this article, our Foolish author takes…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Growth Shares

UK interest rates fall again! Here’s why the Barclays share price could struggle

Jon Smith explains why the Bank of England's latest move today could spell trouble for the Barclays share price over…

Read more »

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

2 out-of-favour FTSE 250 stocks set for a potential turnaround in 2026

These famous retail stocks from the FTSE 250 index have crashed in 2025. Here's why 2026 might turn out to…

Read more »

Young female business analyst looking at a graph chart while working from home
Investing Articles

Down over 30% this year, could these 3 UK shares bounce back in 2026?

Christopher Ruane digs into a trio of UK shares that have performed poorly this year in search of possible bargains…

Read more »

Mature people enjoying time together during road trip
Investing Articles

Yields up to 8.5%! Should I buy even more Legal & General, M&G and Phoenix shares?

Harvey Jones is getting a brilliant rate of dividend income from his Phoenix shares, and a surprising amount of capital…

Read more »

Light trails from traffic moving down The Mound in central Edinburgh, Scotland during December
Investing Articles

Up 7.5% in a week but with P/Es below 8! Are JD Sports Fashion and easyJet shares ready to take off?

easyJet shares have laboured in 2025, but suddenly they're flying. The same goes for JD Sports Fashion. Both still look…

Read more »

US Stock

I think this could be the best no-brainer S&P 500 purchase to consider for 2026

Jon Smith reveals a stock from the S&P 500 that he feels has the biggest potential to outperform the index,…

Read more »