The U.S. stock market has been riding high in 2026, fueled by growing confidence in corporate profits. But as earnings season gets underway in the coming weeks, the central question is whether American companies can actually live up to the sky-high expectations that have been set for them.
Forecasts for 2026 earnings surged after a blockbuster first quarter, driven largely by enormous spending on artificial intelligence infrastructure and a generally healthy economy. While stronger earnings provide solid footing for the market, those elevated forecasts now create a higher hurdle for companies to clear — and any stumbles could rattle investors.
That dynamic may already be playing out. Strong earnings from Samsung Electronics this week were followed by a sharp selloff in the volatile semiconductor sector, suggesting the market’s tolerance for anything less than exceptional results is shrinking.
For the second quarter that just wrapped up, companies in the S&P 500 are projected to show aggregate earnings growth of 23.4% compared to the same period a year ago, according to LSEG IBES, which tracks analyst estimates. That figure is considerably higher than the 15.2% growth that had been anticipated at the start of the year. Forecasts for the remainder of 2026 have also climbed sharply.
Chris Fasciano, chief market strategist at Commonwealth Financial Network, put it simply: “Increased earnings and increased expectations are great for investors because it does drive the market higher.” But he added, “that certainly raises the bar.”
Earnings season officially kicks off next week, with major banks including JPMorgan Chase and Goldman Sachs among the first to report, along with other prominent names such as Netflix and Johnson & Johnson.
A key engine behind this year’s profit boom has been massive capital investment by large companies building out AI infrastructure. That spending has particularly benefited semiconductor firms, along with a wide range of technology, industrial, and other companies tied to the buildout. Consumer spending has also held up well, even amid energy price spikes that followed the Iran war, helping to sustain overall economic momentum.
One notable trend this year: earnings estimates are actually growing faster than the stock market itself. The S&P 500 has gained 9% so far in 2026, but forward earnings estimates have jumped 21% over the same stretch, according to LSEG Datastream.
“It’s very, very rare that you have this strong of a market, but earnings are even stronger,” said Mark Hackett, chief market strategist for Nationwide.
The stronger earnings outlook has also helped ease concerns about the market’s overall valuation. The forward price-to-earnings ratio for the S&P 500 recently stood at 20.1, down from 22.2 at the close of 2025, according to LSEG Datastream — a sign that stock prices haven’t run too far ahead of actual profits.
Still, investors acknowledge there is little margin for error heading into this reporting season. Joe Mazzola, head trading and derivatives strategist at Charles Schwab, said: “We’re going to be heading into Q2 with some higher expectations. It’s probably going to be a little bit more volatile in terms of the Q2 earnings just because of the fact that revisions have gone upwards.”
The first quarter offered a dramatic example of how expectations can be shattered — in a good way. Investors had already anticipated strong results, but actual performance blew past even those optimistic forecasts, producing the highest quarterly earnings growth in more than four years. S&P 500 earnings surged 29.4% in the first quarter, far exceeding the 14.4% growth that analysts had projected at the start of April.
Now, the concern on Wall Street is whether analysts have overcorrected by becoming too optimistic in their profit outlooks. “The risk is that Q1’s exceptionally strong results led (analysts) to raise their estimates for the remaining three quarters by too much,” Yardeni Research wrote in a note this week.
Within the S&P 500, the technology sector is expected to post profit growth of 65.5% for the quarter, per LSEG IBES data. Energy companies are projected to see earnings jump roughly 115% as oil prices spiked, while the materials sector is expected to show growth of about 32.5%.
Bruce Zaro, managing director at Granite Wealth Management in Plymouth, Massachusetts, cautioned: “I would not expect big moves in tech stocks and other stocks unless they beat by a wide mile. Those earnings bars … have been set at a higher level now.”
Looking at the full year, S&P 500 earnings are now projected to rise 26.4% in 2026 — which would mark the strongest annual profit performance since 2021. Analysts are also forecasting an additional 17.9% gain in 2027.
Hackett said he wants to see more clarity on whether the forces driving 2026’s strong profits — including AI-related gains and fiscal stimulus — can be sustained. “That to me is the biggest concern, is the one-time nature of some of these events that have happened this year that just aren’t sustainable,” he said.
Jack Ablin, founding partner and chief investment strategist at Cresset Capital, noted that forecasting earnings tied to an emerging technology like AI is particularly difficult. “That’s part of the reason that multiples are coming down because the visibility isn’t there,” he said. “That also puts so much more important emphasis on earnings season. We’ll get a better sense of where things are headed.”
