Investing £10 a day in the FTSE 100 index to aim for a million!

Investing £10 a day in the FTSE 100 index could potentially deliver a £1m portfolio for long-term investors, but is it worth looking beyond a tracker fund?

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.

British union jack flag and Parliament house at city of Westminster in the background

Image source: Getty Images

Can I become a stock market millionaire by investing just £10 a day in the FTSE 100 index?

Yes, I believe so. However, confining equity investments solely to the UK’s leading benchmark has both advantages and disadvantages. Accordingly, there are important considerations to bear in mind when aiming for a seven-figure portfolio from FTSE 100 shares alone.

So, let’s explore the Footsie’s potential to create long-term wealth as well as some additional considerations for investors like me today.

Diversification

Spreading risk across multiple companies and sectors via portfolio diversification is generally regarded as a prudent strategy.

Investing £10 a day in a FTSE 100 tracker fund might be a good way to achieve this. In doing so, investors gain exposure to the largest 100 firms listed on the London Stock Exchange (LSE) measured by market cap.

Although this might be more diversified than a portfolio containing just a handful of stocks, it’s worth noting that LSE shares only account for around 4% of the global stock market’s total value. The FTSE 100 makes up even less.

Plus, the index is especially concentrated in particular sectors, including oil and gas, banking, retail, insurance, and tobacco. There’s a notable lack of tech stocks, which may be a concern for some investors.

Dividends

While some may uncharitably describe FTSE 100 companies as ‘dinosaur’ businesses, there are attractive features for investors to consider too.

Passive income is a key one. With a higher dividend yield than the S&P 500, the Footsie has plenty to offer investors seeking regular cash payouts.

At present, the average yield across FTSE 100 stocks is a healthy 3.9%. Historically, dividend distributions have been a crucial source of returns.

Indeed, the index’s points performance has been pedestrian in recent years. However, via dividend reinvestments, FTSE 100 investors would have made around a 7% return per year over long time periods.

A million-pound portfolio

Past performance doesn’t guarantee future results and low or negative returns can’t be ruled out. However, I think it’s reasonable to use history as a guide for modelling purposes.

Arguably a forecasted 7% annualised return isn’t too outlandish considering the FTSE 100 looks cheap today compared to other major stock market indexes. After all, the benchmark has a price-to-earnings (P/E) ratio of just 9.2.

On that assumption, an investor could potentially become a stock market millionaire in less than 44 years by investing £10 a day in the index, making a little over £160k in total contributions.

That’s encouraging news for a 20-year-old with a long investment horizon. However, some investors might prefer to adopt more risk in pursuit of faster growth.

Beyond a FTSE 100 tracker fund

If investors are prepared to potentially sacrifice some diversification and assume greater volatility exposure, investing in a combination of a FTSE 100 index fund and individual stocks could merit consideration.

For instance, I concentrate some of my own portfolio in certain FTSE 100 stocks such as pharma giant AstraZeneca and mining conglomerate Rio Tinto. In addition, I have positions in leading US tech stocks like Alphabet and Microsoft.

But, I also own index funds. Investing rarely demands an ‘all-or-nothing’ approach, so there’s nothing to stop investors from using multi-faceted strategies when aiming for a million.

Suzanne Frey, an executive at Alphabet, is a member of The Motley Fool’s board of directors. Charlie Carman has positions in AstraZeneca Plc, Rio Tinto Plc, Alphabet, and Microsoft. The Motley Fool UK has recommended Alphabet, AstraZeneca Plc, and Microsoft. 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

Santa Clara offices of NVIDIA
Investing Articles

A once-in-a-decade chance to buy Nvidia stock on a P/E ratio of less than 20?

The last time Nvidia stock had a sub-20 P/E ratio was over 10 years ago. Could we be looking at…

Read more »

Finger clicking a button marked 'Buy' on a keyboard
Investing Articles

How did the FTSE 100 near 11,000 so quickly?

The FTSE 100 has been storming higher in 2026. What are the reasons for the surge? And could it continue…

Read more »

Cargo containers with European Union and British flags reflecting Brexit and restrictions in export and import
Investing Articles

£1,000 buys 219 shares of this red-hot UK industrial stock that’s outperforming Rolls-Royce

Rolls-Royce shares have been a very popular investment in recent years. However, over the last 12 months, this under-the-radar stock…

Read more »

A tram in Manchester's city centre
Investing Articles

Here are 5 things Greggs shareholders just learned

Ben McPoland takes a look at some key bits from Greggs' 2025 report. But with consumer spending still under the…

Read more »

Businessman with tablet, waiting at the train station platform
Investing Articles

Lloyds’ share price has plunged 14% from its highs! Time to buy?

Lloyds' share price is back below 100p amid sinking market confidence. Should investors consider buying the FTSE 100 bank as…

Read more »

Landlady greets regular at real ale pub
Investing Articles

Prediction: in 12 months, Diageo shares and dividends could turn £20,000 into…

Diageo shares have dropped more than a quarter over the last year. Does this make the FTSE 100 company a…

Read more »

Investing Articles

Is today’s volatility a once-in-a-decade chance to buy UK stocks?

UK stocks are taking a beating as war in the Middle East spooks investors. Harvey Jones says investors need to…

Read more »

British coins and bank notes scattered on a surface
Investing Articles

How much do I need in an ISA to earn a second income of £950 a month?

A second income can be a life-saver when problems arise. Mark Hartley calculates how much is needed in an ISA…

Read more »