How I’d invest £20,000 in FTSE 100 shares to aim for a million

The FTSE 100 is the UK’s leading stock index. Our writer considers his roadmap to turn £20k of these large-cap shares into £1m.

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.

Happy couple showing relief at news

Image source: Getty Images

When investing, your capital is at risk. The value of your investments can go down as well as up and you may get back less than you put in.

Read More

The content of this article is provided for information purposes only and is not intended to be, nor does it constitute, any form of personal advice. Investments in a currency other than sterling are exposed to currency exchange risk. Currency exchange rates are constantly changing, which may affect the value of the investment in sterling terms. You could lose money in sterling even if the stock price rises in the currency of origin. Stocks listed on overseas exchanges may be subject to additional dealing and exchange rate charges, and may have other tax implications, and may not provide the same, or any, regulatory protection as in the UK.

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.

Despite being UK-based, the FTSE 100 index is home to many global businesses. In fact, over 80% of the FTSE 100’s sales are from overseas.

Their sizes range from around £4bn to a whopping £178bn. And six of the shares on the index have market capitalisations over £100bn.

FTSE 100 resilience

One thing to bear in mind is that the Footsie has significant exposure to financials, staples, and energy sectors. And only 1% of it is made up of technology companies.

Should you invest £1,000 in Deliveroo right now?

When investing expert Mark Rogers has a stock tip, it can pay to listen. After all, the flagship Motley Fool Share Advisor newsletter he has run for nearly a decade has provided thousands of paying members with top stock recommendations from the UK and US markets. And right now, Mark thinks there are 6 standout stocks that investors should consider buying. Want to see if Deliveroo made the list?

See the 6 stocks

Despite being left behind in the tech boom over the past two decades, it has held up remarkably well. It even achieved a similar performance to its US counterpart, the S&P 500.

Given its resilience, geographic exposure, and diversification, I’d certainly invest in the FTSE 100 in my Stocks and Shares ISA.

Miracle of compounding

On average, the long-term stock market return is said to be around 10% a year.

If it doesn’t sound like much, let’s consider what happens over time. Based on the average return, if I invest £20,000 in FTSE 100 shares, it could grow to around £32,000 in five years.

But if I keep it invested for far longer, I should benefit from the mathematic miracle of compounding. Even without adding any more of my money, I calculate that in 42 years, I’d have reached over £1m.

That would make for a comfortable retirement, in my opinion. It’s enough to withdraw at least £40,000 a year in dividends.

If I’m too eager to wait until then, I would consider adding fresh funds to my ISA every year. I calculate that by adding £20,000 every year and investing in FTSE 100 shares, I should reach my million-pound target in just 19 years.

Which shares?

For now, let’s say I’m just making a one-off £20,000 investment. What should I buy?

First, I’d invest half of the sum, so £10,000, in a FTSE 100 index tracker fund. As the name suggests, this instrument aims to track the performance of all 100 companies.

This is a low-cost way to invest in a diversified group of shares.

Next, I’d allocate the final £10,000 to a handpicked selection of my five favourite shares. I’d consider £2,000 for each one.

Picking individual stocks can involve more risk as much can change over time. New competition or technology can disrupt business models. That’s why I’d need to monitor my selection.

There are ways to mitigate some risks though. For instance, I’d spread my selection across several industries to avoid putting all my eggs in one basket.

I’d also look for a strong competitive advantage that enables consistently large profit margins. It’s what popular investor Warren Buffett calls a moat.

Right now, if I had the spare cash to allocate to a long-term investment, I’d choose the following FTSE 100 shares: Rio Tinto, Persimmon, BP, RELX, and Astrazeneca. By owning quality shares with strong business models, I’d expect to reach a million much earlier than planned.

Should you buy Deliveroo now?

Don’t make any big decisions yet.

Because Mark Rogers — The Motley Fool UK’s Director of Investing — has revealed 5 Shares for the Future of Energy.

And he believes they could bring spectacular returns over the next decade.

Since the war in Ukraine, nations everywhere are scrambling for energy independence, he says. Meanwhile, they’re hellbent on achieving net zero emissions. No guarantees, but history shows...

When such enormous changes hit a big industry, informed investors can potentially get rich.

So, with his new report, Mark’s aiming to put more investors in this enviable position.

Click the button below to find out how you can get your hands on the full report now, and as a thank you for your interest, we’ll send you one of the five picks — absolutely free!

Grab your FREE Energy recommendation now

Should you invest, the value of your investment may rise or fall and your capital is at risk. Before investing, your individual circumstances should be assessed. Consider taking independent financial advice.

Harshil Patel has positions in Bp P.l.c. The Motley Fool UK has recommended RELX. 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

Front view of a young couple walking down terraced Street in Whitley Bay in the north-east of England they are heading into the town centre and deciding which shops to go to they are also holding hands and carrying bags over their shoulders.
Investing Articles

Up 15% in a month and still yielding 9.5% – this FTSE second income stock is on fire!

Harvey Jones says wealth manager M&G offers one of the most exciting second income streams on the entire FTSE 100.…

Read more »

Wall Street sign in New York City
Investing Articles

Looking for cheap stocks to buy? 2 reasons now might be the ideal moment!

Amid market turbulence, our writer has not been diving for cover, but actively on the hunt for stocks to buy…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

These 2 FTSE 250 stocks now yield more than 10% – is that income sustainable?

Harvey Jones is astonished to discover how much dividend income investors can get from FTSE 250 stocks. These two have…

Read more »

DIVIDEND YIELD text written on a notebook with chart
Investing Articles

3 promising high-yield FTSE 250 stocks to consider buying right now!

When hunting for lucrative high-yield dividend shares, our writer heads straight for those smaller-caps found in the UK's secondary index,…

Read more »

Tesla building with tesla logo and two teslas in front
Investing Articles

Are Tesla shares now a brilliant long-term opportunity?

Tesla shares have been pummelled by the markets so far this year. Our writer thinks they may have a lot…

Read more »

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

Up 22% in a month, has the Rolls-Royce share price restarted its incredible rise?

Even after a storming few years, the Rolls-Royce share price has leapt over a fifth in just one month! Is…

Read more »

Santa Clara offices of NVIDIA
Investing Articles

I’ve been eyeing Nvidia stock, but I just bought this chip giant instead

After a recent fall in the price of Nvidia stock, this writer was considering it but decided to buy a…

Read more »

ISA Individual Savings Account
Investing Articles

Why I don’t hold cash in my Stocks and Shares ISA

Stephen Wright explains why he’s fully invested in his Stocks and Shares ISA – and why he intends to keep…

Read more »