We have some exciting news to share! The Motley Fool UK has now become an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. We’ll be introducing a new name and brand over the coming weeks — we're very excited to share it with you and embark on this new chapter together!

I’d aim for a million buying just a few shares

This writer hopes to reach a million by taking a disciplined, rigorous approach when searching for shares to buy for his portfolio.

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.

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

Image source: Getty Images

Like a lot of people, the idea of being a millionaire appeals to me. One way I could aim for a million is by investing money over time and building a shares portfolio.

It might seem like the obvious way to do that would be to invest in dozens and dozens of different companies and hope that some of them do very well. That is more or less the strategy of Scottish Mortgage Investment Trust — admittedly with a lot of research and analysis along the way. Over the past five years, its shares are up 55%. That is impressive, but  I would have need to have invested nearly £650,000 in the shares five years ago to become a millionaire.

So, what do I think I could do differently on my own? After all, Scottish Mortgage has professional fund managers and invested in some companies like Tesla well before they became popular.

Going for great

While Scottish Mortgage has done pretty well over the past five years, Tesla itself has done far better. In that timeframe, the Tesla share price has soared 878%. If I had put £115,000 into Tesla shares five years ago, I would now be a millionaire.

I think if one seriously plans to aim for a million, it is necessary to invest a substantial amount of money. In this example, £115,000 would have been enough.

What if I did not have that sort of money – or none at all? I could still aim for a million by building up my investment fund over time, contributing on a regular basis to a share-dealing account or Stocks and Shares ISA. With the annual contribution deadline for ISAs coming up next week, now is actually the perfect time for me to put some money into an ISA.

Diversification – up to a point

In reality, if I had £115,000 to invest five years ago, I would not have put it all into Tesla or indeed any other single share. While Tesla has done very well, such performance is never guaranteed, no matter how promising a share seems.

So I diversify my investments between a number of shares.

But here is the thing. I would like to aim for the sort of returns seen from Tesla over the past five years rather than those of the diversified Scottish Mortgage trust, which numbers Tesla among its holdings. Yet I also want to be diversified. How could I achieve that?

My approach would be to buy just a few stocks (between five and 10 would be ideal for my purposes), versus the dozens and dozens owned by Scottish Mortgage. I would try to focus on picking what I thought were likely to be the biggest winners.

Of course, it is impossible to know which shares will do best (otherwise probably all investors would buy them). But I already narrow down the stock market to the shares I think have potential. I am simply adding another step to that process, as I try to zoom in on my very strongest investment ideas.

Rather than water down my results by filling my portfolio with just ‘okay’ stocks, I think I could seriously aim for a million by keeping a firm focus on finding the ‘best of the best’.

C Ruane has no position in any of the shares mentioned. The Motley Fool UK has recommended Tesla. 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

Passive income text with pin graph chart on business table
Investing Articles

Here’s how much to put in your ISA if you hope for passive income of £21,000

With a diversified portfolio of high quality shares and a disciplined investment mindset, Mark Hartley outlines his passive income strategy.

Read more »

Happy woman commuting on a train and checking her mobile phone while using headphones
Investing Articles

Here’s how someone could start buying shares for the price of a weekend break

Is it really possible to start buying shares for the cost of a quick getaway? Our writer explains how it…

Read more »

Bus waiting in front of the London Stock Exchange on a sunny day.
Investing Articles

2 top growth shares to consider on the London Stock Exchange

There are plenty of UK stocks to buy that have potential long runways of growth. Here, our writer highlights two…

Read more »

Smiling white woman holding iPhone with Airpods in ear
Investing Articles

£20k invested in a Stocks and Shares ISA this time last year is now worth…

What has 12 months meant for the value of a Stocks and Shares ISA? That depends on how it has…

Read more »

The flag of the United States of America flying in front of the Capitol building
Investing Articles

While everyone’s piling into AI infrastructure stocks like Micron and SanDisk, consider these out-of-favour Nasdaq 100 names

There’s very little interest in these Nasdaq-listed AI stocks right now despite the fact they’re generating impressive growth. Could this…

Read more »

Workers at Whiting refinery, US
Dividend Shares

Here’s why 2026 has been bumpy for the BP share price

The BP share price has had a good 2026, rising 24% so far. However, ever since the US attacked Iran…

Read more »

A beach at sunset where there is an inscription on the sand "Breathe Deeeply".
Investing Articles

How oil price volatility is impacting stock market sentiment — and how to prepare

As the Middle East crisis deepens, oil price shocks are sending ripples through global stock markets. Mark Hartley considers a…

Read more »

Man thinking about artificial intelligence investing algorithms
Investing Articles

Meet the £7 FTSE 250 tech stock that’s outperforming Nvidia, AMD and Micron in 2026

This FTSE 250 artificial intelligence stock has generated enormous returns in 2026 amid high demand for its products. Is it…

Read more »