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18 August 2026
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While there is lots of talk about US stocks being overvalued, earnings growth keeps on being delivered. Can strong earnings help maintain the momentum? And how do things compare in the UK?
Malcolm
Russ Mould, AJ Bell Investment Director, says:
One of the most encouraging features of 2026, from an equity market point of view, remains positive earnings momentum. On both sides of the Atlantic, positive earnings surprises from companies continue to outweigh negative ones, and aggregate profit forecasts for the major indices continue to rise, not fall.
In an era where algorithm-driven funds dominate so much of the near-term trading flow, and passive funds create an ever-greater degree of reflexivity, thanks to the cycle of more buying-higher share prices-higher index weightings and then more buying and so on (and on), this matters more than ever.
It also means that any easing of that upgrade momentum or, worse, a reversal that is so abrupt it leads to downgrades could have serious consequences. The algo-led funds would dispassionately respond with selling, and the passive funds could, presumably, be at risk of creating a reflexive self-feeding cycle that leans to the downside every bit as vigorously as it currently does to the upside.
Up, up, and away
For all of the brickbats thrown at the FTSE 100, and the prevailing political and economic uncertainty, the good news for investors with exposure to UK equities on the earnings front is three-fold.
First, analysts believe that aggregate earnings across the UK’s premier index will set a new record high in 2026, and again in 2027. That at least helps to explain why the index stands within a fraction of the all-time set in February, before the Middle Eastern war broke out.
FTSE 100 earnings are expected to set new record highs in 2026 and 2027
Second, the consensus forecast growth figures of 12% in 2026 and 8% in 2027 do not appear overly ambitious, given that the compound annual growth rate (CAGR) over the last twenty years has been 8.6%, a figure which looks credible in the context of trend GDP growth, average inflation rates and a little productivity and corporate profit margin expansion sprinkled on top. Granted the outlook here in the UK remains murky, but the FTSE 100 generates two-thirds of its profits overseas.
Finally, analysts are upgrading their estimates. This is a nice change. Usually, they trim forecasts as a year develops and forecasts prove optimistic, but 2026 and 2027 are proving to be welcome exceptions to this rule, at least for now.
The net result is the FTSE 100 trades on barely 13 times forward earnings for 2026 and 12 times for 2027. These are not unduly low multiples relative to the index’s own history but nor are they expensive either, which may offer some downside support should anything unexpectedly go wrong.
Turbocharged
The outlook looks even brighter in the US, after a bumper first-quarter reporting season and upgrades galore for the second quarter at the same time.
Thanks to technology stocks in particular, but with energy and industrials chipping in and only healthcare showing any weakness, analysts now believe that the S&P 500 index’s members will also generate record earnings in 2026 and 2027.
Analysts also continue to upgrade their forecasts. At the start of this year, consensus estimates were looking for 17% growth in S&P 500 aggregate earnings to $310 a share. Now analysts expect a 23% rate of increase to $323, with a further 16% advance in 2027 to $376.
US earnings are also expected to run above historic trend growth levels in 2026 and 2027
However, there are three key differences between the UK and US.
First, the US equity market does look expensive relative to its history. Even the bumper profits expected for 2026 and 2027 leave the S&P 500 on forward earnings multiples of nearly 23 times and 20 times, respectively. The 10-year average is around 18 times, according to FactSet, although the bulls will argue that a price-to-earnings growth (or PEG) ratio of barely one times for 2026 does not leave them as hostages to fortune.
Second, the growth rates that analysts predict for the next two years are miles above the 20-year compound annual growth (CAGR) rate of 6.4%. The bull case will assert that productivity gains thanks to AI more than justify the assumption of an era of premium growth and only time will tell if that is the case. But the 40-year CAGR for S&P 500 earnings per share is just 6.7%. That longer period encompasses not just the technology, media, and telecoms profits boom of 1998 to 2000 but also the long-term economic benefits of the broadband, wireless telecoms, and internet build-out that have exceeded even the wildest dreams of investors and analysts back at the turn of the century.
Finally, the 10-year CAGR is forecast to be more than 10% three years in a row, based on 2026 and 2027 estimates. Even the cyclical peaks of 2000 and 2006, before the tech and mortgage bubbles collapsed, topped out at 9.5% and 8.0% respectively.
Sharp falls in earnings in 2001 and 2007-09 punctured any ‘new era’ thinking then and prompted devastating bear markets.
It may well be different this time, but the absence of any acceleration in American companies’ long-term earnings growth seems to back up the assertion of the American Nobel Laureate economist Robert Solow that, “you can see the computer age everywhere but in the productivity statistics”.
Should the so-called Solow Paradox hold true then the combination of lofty valuations and earnings disappointment could be a recipe for greater volatility in US equities.
Russ Mould: Investment Director
Russ Mould is AJ Bell's Investment Director. He has a Master's degree in Modern History from the University of Oxford and more than 30 years' experience of the capital markets.
He started out at Scottish...
