Should I invest in the FTSE 100 or the S&P 500?

Both the FTSE 100 and its US counterpart offer investors a quick and easy way to diversify their portfolios. But which index looks the better buy today?

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.

The Mall in Westminster, leading to Buckingham Palace

Image source: Getty Images

I love to buy individual stocks, but I can see why index investing has some advantages. The main one is that I’m able to invest in all the stocks in, say, the FTSE 100 without having to pick and choose. This would give me instant diversification in one fell swoop.

One of the most popular indexes in the world is the S&P 500. This collection of companies has generally outperformed the UK stock market for decades now.

However, the FTSE 100 is cheaper and pays a much higher dividend than the S&P 500. So which one should I invest in? Let’s explore.

The Footsie

London’s blue-chip index hit a new all-time high of over 8,000 points back in February. Then a handful of banks ran into trouble at the beginning of March and the FTSE 100 sold off.

However, now the dust has started to settle and a full banking meltdown looks unlikely, and the Footsie has bounced back. In fact, since its March low, it has risen over 6%.

Below is the index’s performance versus the S&P 500 over four time periods.

TimeframeFTSE 100 S&P 500
6 months+14.2%+11.5%
1 year+3.2%-8.0%
3 years+35.5%+42.3%
5 years+7.7%+54.0%

These returns don’t factor in dividends, which make the FTSE 100 so attractive to many investors. That’s because it currently yields an average 3.5%, which is about double the yield of the S&P 500.

However, this high yield does hint at a perceived weakness of the FTSE 100. This is that it’s heavily skewed towards ‘old-world’ companies, such as dividend-paying miners and oil giants.

Indeed, UK-focused fund manager Nick Train recently said the UK was a “backwater” of global markets. Ouch!

The strategy I settled upon a few years ago is similar to Train’s. I cherry-pick what I consider to be the best 20% or so of companies in the FTSE 100 and hold these as large positions. I don’t bother with the index because around half of it doesn’t appeal to me.

The S&P 500

As the name implies, the S&P 500 tracks more stocks than the FTSE 100. That means if I picked the best 20% here I’d end up with 100+ stocks in my portfolio. I consider that far too many for me to follow.

So, in theory, I see much more value in utilising an S&P 500 index fund. I’d get instant exposure to the fortunes of hundreds of powerful global companies.

My concern though is that it’s very tech-heavy, with Apple having an approximate 7% weighting. Other mega-caps include Microsoft, Google-parent Alphabet, and Amazon. In fact, just these four shares make up around 20% of the index.

Meanwhile, Berkshire Hathaway, which is also quite heavily represented, also has a massive stake in Apple. And the iPhone-maker is also in my own portfolio, as is Alphabet (a recent addition last month).

So, for me, there’s a risk of portfolio overconcentration (particularly in Apple) were I also to invest in the S&P 500.

Therefore I’m going to keep investing in individual stocks from both indexes, whenever I identify timely opportunities. This strategy has served me well for many years now. And, as the old saying goes, if something ain’t broke, don’t fix it.

John Mackey, former CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. Suzanne Frey, an executive at Alphabet, is a member of The Motley Fool’s board of directors. Ben McPoland has positions in Alphabet and Apple. The Motley Fool UK has recommended Alphabet, Amazon.com, Apple, 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

Abstract 3d arrows with rocket
Investing Articles

Up 25% YTD! Is this red-hot penny stock still ‘cheap’?

This penny stock has been on fire in 2026. Ken Hall takes a closer look at the investment story behind…

Read more »

Man smiling and working on laptop
Investing Articles

Stock market correction? A passive income opportunity!

Looking to turbocharge your passive income? The stock market correction could be a once-in-a-decade chance to do just that, says…

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

Are investors running scared of Babcock and BAE Systems shares?

BAE Systems shares have had a brilliant run, and other UK defence stocks have been flying too. But Harvey Jones…

Read more »

Mature black woman at home texting on her cell phone while sitting on the couch
Investing Articles

As the FTSE 100 falls, savvy investors are looking for stocks to buy for the rebound

Many FTSE stocks have now fallen 10% or more from their 2026 highs. For long-term investors, exciting opportunities are emerging.

Read more »

Portrait Of Senior Couple Climbing Hill On Hike Through Countryside In Lake District UK Together
Investing Articles

Should investors consider buying resilient Admiral Group and Tesco shares as markets wobble?

Harvey Jones is impressed by how Tesco shares have held up in the current market volatility, while Admiral has been…

Read more »

DIVIDEND YIELD text written on a notebook with chart
Investing Articles

Down 15% in a month and yielding 7.5%! Should I buy even more of my favourite dividend stock?

Harvey Jones says this brilliant FTSE 100 dividend stock is suddenly cheaper due to recent market volatility. And the yield…

Read more »

Abstract bull climbing indicators on stock chart
Growth Shares

3 growth shares for an ISA that have beaten the FTSE 100 for the past 5 years

Jon Smith points out several growth shares that have outperformed the broader market over a long period of time, with…

Read more »

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

Time’s running out for our 2025/26 Stocks and Shares ISA plans!

Never mind the stock market wobble, it's time to turn our attention to our Stocks and Shares ISA investments for…

Read more »