My plan to turn £100 a week into £1m

Rupert Hargreaves explains how he’s planning to make a fortune in the stock market with just a £100 investment per week.

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.

You don’t need to be a maths whizz or well connected City stockbroker to be a good investor. Indeed, today anyone can open up an online share dealing account with a small deposit. Most online stock brokers also offer regular investment plans, starting from as little as £50 a month.

Therefore, if you can make the most of these offers, it’s relatively straightforward to make a million in the market. All you need to do is set up a regular contribution plan, sit back, and relax.

The best index

The best way to invest your money with a regular contribution plan is to buy a low-cost passive tracker fund. The great thing is they don’t require any babysitting or additional work on your part.

Passive tracker funds only replicate their underlying stock indexes. As a result, all you need to do is pick one or two, and that’s really it. You don’t need to monitor these funds to make sure their managers aren’t straying into inappropriate investments. 

For UK investors, the two best indexes to track are the FTSE 100 and FTSE 250. Since inception, the FTSE 100 has produced an average annual return for investors of around 9%. Meanwhile, the FTSE 250 has returned approximately 12%. So it seems that if you’re looking to get the most bang for your buck, the FTSE 250 is the best index to track.

Low-cost

The best low-cost FTSE 250 tracker fund on the market at the moment charges just 0.10% per annum in management fees. This excludes stockbroker platform costs. These fees could add 0.40% per annum on top, although some providers charge much less.

Keeping costs low is vital if you want to get the most out of your money. For example, an investment of £100 a month in the FTSE 250 would be worth £1m after 39 years. That’s assuming an average annual rate of return of 12%, and excludes costs and charges. 

However, if you end up paying 2% per annum in fees, your nest egg would be worth just £507,000 after 39 years. Keeping total costs below 0.5% would allow you to hit the £1m benchmark in 41 years. 

Slow and steady

It’s relatively straightforward to make £1m in the stock market if you stick to a regular investing plan and keep costs low. The FTSE 250 is an excellent index to track for this purpose because it offers exposure to some of the UK’s fastest-growing companies.

Many of its constituents also have an international presence. This should give investors some diversification away from Brexit uncertainty.

The most important thing to remember is that becoming a millionaire won’t happen overnight. It takes time and patience. But as the figures above show, as long as you can meet the monthly contribution target and let the market take care of the rest, making a million with the FTSE 250 isn’t impossible.

Rupert Hargreaves owns no share 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

A senior man using hiking poles, on a hike on a coastal path along the coastline of Cornwall. He is looking away from the camera at the view.
Investing Articles

Buying 56,476 shares in this FTSE 100 dividend stock could double the State Pension

Harvey Jones crunches the numbers to show how much he needs to hold in one top dividend stock to generate…

Read more »

Portrait of elderly man wearing white denim shirt and glasses looking up with hand on chin. Thoughtful senior entrepreneur, studio shot against grey background.
Investing Articles

This FTSE 250 stock’s crashed 18% today! Is it too cheap to miss?

Vistry is one of the FTSE 250's worst-performing stocks, sinking by double-digit percentages on Wednesday (4 March). Is this a…

Read more »

ISA Individual Savings Account
Investing Articles

How much do I need in a Stocks and Shares ISA to earn a £100 monthly income?

A 6% dividend yield's enough to turn £20,000 into a £100 monthly income for investors using a Stocks and Shares…

Read more »

Calendar showing the date of 5th April on desk in a house
Investing Articles

It’s ISA time – but would your money work harder in a SIPP? I asked ChatGPT…

As the annual Stocks and Shares ISA deadline looms, Harvey Jones asks if investors would be better off putting money…

Read more »

Investing Articles

Up 42% in 12 months! Why I like this dividend share yielding 5%

This FTSE 100 dividend share has soared higher while still maintaining a dividend yield of 5%. Ken Hall takes a…

Read more »

Burst your bubble thumbtack and balloon background
Investing Articles

£15,000 invested in Helium One shares in December 2020 is now worth…

James Beard explains why loyal Helium One shareholders will be hoping the group can soon commercialise gas production.

Read more »

Departure & Arrival sign, representing selling and buying in a portfolio
Investing Articles

£1,000 now buys 264 shares in British Airways owner IAG. Worth it?

This time last week, IAG shares were flying high. However, in the blink of an eye, they’ve fallen about 16%.…

Read more »

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

A once-in-a-decade opportunity to buy BAE Systems shares ‘cheaply’?

BAE Systems shares are on the charge. Ken Hall investigates if this could be just the beginning for the FTSE…

Read more »