Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

A successful Brexit deal could destroy the FTSE 100

Harvey Jones says that if Brexit ever happens, the FTSE 100 (INDEXFTSE: UKX) could become its first victim.

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.

Look, I know my headline is a bit silly. That phrase ‘a successful Brexit deal’ is on absolutely nobody’s lips, and never will be. In the unlikely event that British and EU negotiators do produce something vaguely serviceable, everybody will trash it anyway. Half the country will be disappointed, possibly all of it. Or we may never get a deal at all. We might just crash out.

Black October

Worse, we are in the dark until Parliament gets back from its lengthy hols, and September seems a long way away. We are supposed to strike a deal with Brussels by October, but that seems unlikely right now. After that, who knows? We are due to leave the EU on 29 March 2019. We could be squabbling over the details at five to midnight, and mopping up for years after that.

I believe we will strike some kind of deal, at some point, and it will be a bit rubbish and please absolutely nobody. We will hand over our £39bn, with further EU bungs for years to come. Then 30 March will be upon us, I will coincidentally celebrate my birthday, and life will go on. Kent will not become a lorry park. Donkey will not be on the menu. There will be no checkpoints on the Irish border.

Muddle on

When that happens, everyday life will kick in again. People will start talking about something else. Please! There will be no more blather about a second referendum. A wave of pent-up business investment will start gushing through the economy, and GDP growth will pick up. The pound will rebound, possibly quite a lot. Foreign holidays will become cheaper and, oh my, the FTSE 100 will fall!

One of the main factors that has been driving up the index since June 2016 will go into reverse. FTSE 100 companies earn more than three quarters of their revenues overseas, and these will fall once converted back into newly resplendent post-Brexit sterling. Blue-chips will come crashing down. Investors will feel sad.

Life after Brexit

This could even happen as early as October. Newly-appointed Brexit Secretary Dominic Raab is straining “every sinew” to make sure we strike a deal by then, although he’s no longer in charge of negotiations, so it will be Prime Minister Theresa May who leads an admiring nation to glorious victory.

Both Raab and EU negotiator Michel Barnier have noted that 80% of the withdrawal agreement is already settled. Of course it’s always the 20% that causes most of the problem, but this is more optimistic than we have been led to think.

Perhaps this is a Panglossian view. But there’s a lot of noise at the moment and some point it will stop and we will cobble together something unsatisfactory but survivable. The pound will rise and FTSE 100 will fall. It will hurt but we’ll get over it. The FTSE 100 will still be packed with juicy high-yielding stocks and long-sighted investors will see this as a nice buying opportunity, because all the silliness will finally be behind us. The end.

harveyj has no position in any of the 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

Market Movers

33p penny stock Made Tech could be set for huge gains in 2026, if City analysts are right

This penny stock just experienced a sharp move higher. However, analysts reckon that there are plenty more gains to come…

Read more »

Elevated view over city of London skyline
Investing Articles

FTSE shares: a simple way to build long-term wealth?

Christopher Ruane explains some factors he thinks an investor should consider when trying to build wealth by investing in FTSE…

Read more »

Investing Articles

Will the soaring BP share price surge 88% in 2026?

BP's share price has risen by double-digit percentages in 2025 -- and some analysts think even greater gains could be…

Read more »

Belfast City Sunset with colorful twilight over Lagan Weir Pedestrian and Cycle Bridge spanning over the Lagan River in downtown Belfast
Investing Articles

Here’s what £5,000 put into HSBC shares in January would be worth now!

Would someone who bought HSBC shares back in January now be sitting on a paper profit or loss? Christopher Ruane…

Read more »

Percy Pig Ocado van outside distribution centre
Investing Articles

Down 91%, is there any hope left for Ocado shares?

Down 91% in five years, is the writing on the wall for Ocado shares? Our writer doesn't necessarily think so…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

It’s the most popular UK stock in 2025 but hasn’t grown in 5 years! What’s going on?

Harvey Jones is baffled by the sheer popularity of this UK stock. Its shares have hardly grown in recent years…

Read more »

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

How much do you need in a FTSE 250 portfolio to target £2,147 in monthly income?

Jon Smith runs through the steps needed to build up a generous dividend portfolio and outlines why the FTSE 250…

Read more »

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

2 stocks I wouldn’t touch with a bargepole today in my ISA and SIPP

The following two stocks have a history of being incredibly popular with retail investors. So why is this writer avoiding…

Read more »