FTSE 100 ‘to hit 10,000’! 5 reasons why I’d buy UK shares today to get rich

UK shares are now at their cheapest level since 1973 and this fact could make now a great time to invest in the FTSE 100 before it starts flying.

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.

UK shares haven’t had the best of times this century. The FTSE 100 has trailed global stock markets for years, but there are good reasons why that may now change.

On 31 December 1999, the index ended the Millennium trading at 6,930. Incredibly, today it is around 600 points lower, at 6,360. Yet investors have still made plenty of money from UK shares over that time. First, most won’t have bought at the Millennium peak, but at cheaper prices. Second, they will have benefited from reinvested dividends.

Over the 20 years to 31 December 2019, the FTSE 100 rose just 8.8%, or 600 points. Yet if I had reinvested all my dividends for growth, my total return over that time would have been 122%, according to figures from Schroders. And that’s if I bought at the very top. If I bought at much lower levels, as almost everyone will have done, I will have generated a lot more growth.

Here’s why I’d buy UK shares

Why am I telling you this? Because I’ve just seen an interesting argument from investment analyst Brian Dennehy, of FundExpert. He reckons there is a clear potential for the FTSE 100 to rise 50% from here. If he is right, that would push the index towards the 10,000 mark and make investors who buy today rich. Especially as they will get dividends on top.

Dennehy says his prediction may look extreme, and admits it will take several years, but gives five reasons why it could happen.

  • The UK stock market has effectively gone sideways for more than 20 years.
  • UK shares are now cheaper than at any time since 1973, relative to the rest of the world.
  • The impact of the pandemic has been to make what was cheap, even cheaper.
  • Global investors have been very underweight the UK since the EU referendum of 2016.
  • Once Brexit is done (in whatever form), global investors will have much greater certainty.

Dennehy sees plenty of pent-up optimism, but not a lot of money actually being invested.  He reckons there is a wave of money waiting to wash across the UK, once sentiment turns. By contrast, he is wary of the US, which has been the world’s standout market over the last decade, saying it is “now self-evidently a mania”.

At the Fool, we are rightly wary of stock market predictions. “The future’s not ours to see“, as the words of the song go! What we do know is that buying UK shares when they are cheap always makes sense. That’s what I endeavour to do, with the intention of holding them for the long term to allow time for them to recover.

I believe we have a great opportunity today, despite the recent jump on the back of Covid-19 vaccine results. Nobody knows when the FTSE 100 will hit 10,000. It could be another 20 years. However, history shows that if I reinvest my dividends and I’m patient, I will make money from this stock market, whatever happens.

Harvey Jones 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

Aston Martin DBX - rear pic of trunk
Investing Articles

There are hundreds of shares I’d rather buy than Aston Martin. Here’s why!

Aston Martin shares sell for pennies yet some of its cars can cost millions. So why doesn't this writer see…

Read more »

Young Caucasian man making doubtful face at camera
Investing Articles

3 risks to Greggs shares that could hamper a recovery

Greggs shares have a good dividend, but the price has performed weakly. Is our writer missing something by holding onto…

Read more »

ISA coins
Investing Articles

1 mighty FTSE dividend stock I’m considering for my ISA

A new ISA allowance has Paul Summers searching for strong and stable dividend stocks to add to his portfolio.

Read more »

Rolls-Royce's Pearl 10X engine series
Investing Articles

Are Rolls-Royce shares’ best days behind them?

Rolls-Royce shares have had a stellar few years. So far in 2026, though, they slightly lag the FTSE 100 blue-chip…

Read more »

A rear view of a female in a bright yellow coat walking along the historic street known as The Shambles in York, UK which is a popular tourist destination in this Yorkshire city.
Investing Articles

Buying £20k of Lloyds shares could give me an £851 income this year!

Lloyds has been one of the FTSE 100's hottest dividend growth shares in recent years. But do current risks make…

Read more »

Picturesque Cotswold village of Castle Combe, England
Investing Articles

ISA or SIPP? Some key differences to know

Ever wondered what some of the differences are between investing for retirement in a SIPP and in an ISA? Here…

Read more »

Young woman working at modern office. Technical price graph and indicator, red and green candlestick chart and stock trading computer screen background.
Investing Articles

2 world-class S&P 500 stocks down 11% and 32% to consider buying

Searching for stocks to buy for an ISA in April? Our writher thinks these excellent growth shares are worth a…

Read more »

View over Old Man Of Storr, Isle Of Skye, Scotland
Investing Articles

How much do you need in a Stocks and Shares ISA to aim for an annual income of £39,477?

Harvey Jones shows how ordinary investors can use their Stocks and Shares ISA allowance to build a generous passive income…

Read more »