We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- 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. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

Is the S&P 500 dangerously overvalued? Yes and no!

On three of these five measures, the S&P 500 is highly (even dangerously) overvalued. My solution to this involves returning to my investing roots.

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

The S&P 500 — the main US market index — has had a terrific run. Over the past five years, the index has gained 2,281.24 points to 4,445.93 as I write. In other words, it’s more than doubled (+105.4%) in half a decade. And that’s before adding in dividends. That’s a capital return of almost 15.5% a year compounded. This is way above the S&P 500’s long-term average yearly return. And that’s what worries me today.

The S&P 500 doubles since Meltdown Monday

The S&P 500 ended 2019 at 3,230.78, roughly 10 points below its 2019 (and all-time) high. That was a great year, with the index leaping by 28.9%. 2020 saw a positive start, with the index peaking at 3,393.52 on 19 February. But then came Covid-19 and we all know what happened next. As coronavirus spread worldwide, global stock markets crashed hard.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

On ‘Meltdown Monday’ (23 March 2020), the S&P 500 hit an intra-day low of 2,191.86, before recovering to close at 2,237.40. From 2020’s top to bottom, the US index lost 35.4% of its value. Ouch! However, optimism soon returned and the index staged a comeback worthy of Lazarus. From 2020’s low to today’s 4,445.93, it has added over 2,250 points. That’s an outstanding return of 102.8% in under 19 months. In 35 years of following financial markets, this is the most powerful rebound I’ve ever seen. Indeed, it’s added close to $20trn to global wealth. Wow.

Is the index overvalued today?

When I worry about market valuations, I look to ‘Uncle Warren’ for guidance. Warren Buffett, billionaire investor and philanthropist, once wisely advised investors to “be fearful when others are greedy, and greedy when others are fearful”. The more investors suffer from euphoria, the more anxious I get about over-stretched valuations. However, Buffett also gave this advice earlier this year: “Never bet against America.” I’m worried that the S&P 500 has gone too far, too fast, but what I can do about it?

I turned to this website, which analyses whether the US market/S&P 500 is undervalued, fairly valued, or overvalued. To do this, it uses five core valuation models. These are: the US Treasury yield curve (fairly valued), valuation versus US economy size (strongly overvalued), price/earnings ratio (strongly overvalued), mean reversion (strongly overvalued), and interest rates (fairly valued). Two of these models suggest US stocks have never been so highly valued. As for me, I’m strongly convinced that the S&P 500 index is overvalued and will eventually tumble. But how do I actually act on my belief?

I’m buying cheap UK stocks

Uncle Warren told me never to bet against the USA, so I’m not going to sell my US stocks and walk away. After all, if I’m wrong and a wall of money keeps pushing the S&P 500 higher, then I would miss out on future gains. Likewise, I’m not going to shift my money into bonds, which I see as chronically over-priced after a 40-year bull (rising) market. What I won’t do is put any more money into US stocks for now. Why buy a high-priced asset, when I have a low-priced alternative on my doorstep? I rather like the look of cheap FTSE 100 stocks, which offer low earnings ratings and high dividend yields. Thus, it’s in the Footsie that I’ll shelter my money from the next market downturn. If I’m wrong and the S&P 500 keeps trouncing the Footsie, then so be it!

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

Curtains, happy woman and thinking of future in home, planning and reflection of mindset with view. Window, smile and African girl with vision, ideas and dream for morning inspiration in living room.
Investing Articles

Up 50% in a year! That’s not the only reason I’d consider buying Barclays over Nvidia stock today

Harvey Jones says that Nvidia stock is probably one of the safer ways to play the artificial intelligence revolution. But…

Read more »

Happy senior couple hugging and enjoying retirement at home
Investing Articles

Here’s why I bought this 7.6%-yielding FTSE 100 dividend stock instead of saving in a Cash ISA

Harvey Jones crunches the numbers to show how investing in stocks and shares can be much more profitable than saving…

Read more »

Young Asian woman holding a cup of takeaway coffee and folders containing paperwork, on her way into the office
Investing Articles

Here’s how much passive income 1,000 Greggs shares could pay…

Greggs shares have lost nearly 50% of their value inside the past two years. Is this out-of-favour passive income stock…

Read more »

Overjoyed exited middle aged married couple giving high five, finishing doing domestic paperwork together at home. Euphoric happy older mature spouses celebrating successful investment or purchase.
Investing Articles

This beaten-down FTSE 100 dividend share just jumped 11% in a week but still yields almost 5%

Harvey Jones has been highlighting this dividend share opportunity for weeks and suddenly it's showing signs of life. Can the…

Read more »

Investing Articles

Down 53% since May, is this SpaceX-backed UK stock now in the bargain bin?

The Filtronic (LSE:FTC) share price has come crashing back down to earth in recent weeks. Has the selling gone too…

Read more »

Close-up as a woman counts out modern British banknotes.
Investing Articles

3,566 shares in this FTSE 100 stalwart earns a £1,443 second income

Stephen Wright sees Unilever's battered share price as an attractive option for investors looking for a second income to consider.

Read more »

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

3 stocks I’m looking to buy in July

Stephen Wright’s stocks to buy list for July includes a specialist chemicals recovery play, a quiet infrastructure compounder, and an…

Read more »

ISA Individual Savings Account
Investing Articles

How do the government’s latest changes affect your Stocks and Shares ISA?

Stephen Wright explains what the new anti-circumvention rules mean for investors with uninvested cash in their Stocks and Shares ISAs.

Read more »