As the benchmark index for the US stock market, the S&P 500 is comprised of the country’s 500 largest publicly-listed companies, and as such is viewed as a bellwether for the health of the US economy. It contains many of the world’s top stocks, and funds that track the stock market will invariably have a heavy weighting towards the S&P 500 given that it holds 17 of the world’s 20 most valuable companies.
As such, its decline is damaging to global investors, but it will also hit pension funds thanks to their exposure to the global stock market.
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“A miserable March has capped off one of the worst quarters for the S&P 500 since 2022,” says Matt Britzman, senior equity analyst, Hargreaves Lansdown.
Prior to March, the S&P had gained in five successive quarters, a streak that goes back to Q3 2023 when the S&P 500 fell 3.7%.
The S&P 500 broke a five-quarter gaining streak in Q1 2025.
(Image credit: Future)
Over the long term, though, the S&P 500 has been a strong driver of returns.
We’ll explore the reasons behind its Q1 dip, and ask whether it can return to growth in the long term.
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Several events have shaken the S&P 500 so far this year.
Firstly, DeepSeek – a Chinese generative AI startup – shook investor confidence in the dominance of US technology firms, especially Nvidia, because it appeared to be able to produce similar results to American AI companies at a fraction of the training costs and infrastructure requirements.
That led to a jittery tech earnings season where stocks fell after results, even if they exceeded market expectations. That, in turn, has led to an extended Magnificent Seven selloff that has dented some of the index’s biggest names.
What has really damaged the index during the second half of the quarter, though, is market pessimism ahead of tariff day – or ‘Liberation Day’ as president Trump has styled it – which takes place tomorrow, on Wednesday 2 April. Fears of the impacts of wide-reaching tariffs on the US economy (where S&P 500 companies are mostly domiciled) and the world economy (where most of its largest constituents generate much of their revenue) have damaged the index.
Sentiment isn’t just low among investors, though. The companies themselves are projecting pessimistic results. Research from FactSet shows that more S&P 500 companies than average have issued negative earnings per share (EPS) guidance for Q1, with 68 out of 107 to have issued guidance so far having made projections below the market consensus prior to their announcement.
Technology companies seem to be driving this pessimism. “At the sector level, the Information Technology sector has the highest number of companies issuing negative EPS guidance of all 11 sectors at 26,” writes John Butters, senior earnings analyst at FactSet.
The S&P 500 over the long term
Over the longer term, though, the S&P 500 has produced strong returns.
Over the last ten years, the index has gained approximately 170%. Over the last 20 years, it has gained around 380%.
There is, of course, no guarantee that these long term trends will continue. However, it’s important to remember that the US is the world’s largest economy, and that historically its downturns – even major ones like the 2008 financial crisis or the bursting of the dot-com bubble – have eventually returned to growth over the long term.
“Volatility looks set to continue in the near term, but if White House fuelled uncertainty turns out to be temporary, this could still be a good time to pick up quality names at a discount,” says Britzman.
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Dan is a financial journalist who, prior to joining MoneyWeek, spent five years writing for OPTO, an investment magazine focused on growth and technology stocks, ETFs and thematic investing.
Before becoming a writer, Dan spent six years working in talent acquisition in the tech sector, including for credit scoring start-up ClearScore where he first developed an interest in personal finance.
Dan studied Social Anthropology and Management at Sidney Sussex College and the Judge Business School, Cambridge University. Outside finance, he also enjoys travel writing, and has edited two published travel books.
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