SUNDAY, OCTOBER 4, 2026 — Corporate America has never been this upbeat about future profits. As third-quarter earnings season kicks off this week, a record number of S&P 500 companies have told Wall Street their bottom lines will beat expectations — issuing more above-consensus profit forecasts than at any point in the roughly 20 years FactSet has tracked the statistic.
The details, reported Sunday morning by MarketWatch's Bill Peters via Dow Jones Newswires, are striking. Of the 116 S&P 500 companies that had put out earnings-per-share outlooks for the third quarter, 72 came in above analysts' estimates. The previous record was 65, set in the second quarter of 2021. That works out to 62% of companies issuing positive guidance — far above the five-year average of 40% and the ten-year average of 41%, according to FactSet's own earnings-season preview.
And analysts are listening. The estimated year-over-year earnings growth rate for the quarter has been revised upward to 29.5%, from 26.7% at the start of the third quarter on June 30. If that holds, it will mark the third consecutive quarter of earnings growth above 25% and the eighth consecutive quarter of double-digit growth for the index.
Tech is doing the talking
Much of the optimism is coming from the information-technology sector, where the artificial-intelligence boom has driven what MarketWatch called "colossal gains." Forty-four IT companies issued upbeat third-quarter profit outlooks that topped analysts' estimates — tying the record for the most tech companies offering positive EPS guidance, set just last quarter.
The sector is home to two of the S&P 500's heaviest lifters: Nvidia, which just announced a historic $150 billion stock buyback, and Micron Technology. Those companies and their peers have benefited from robust demand for the chips needed to fuel the massive AI build-out — demand so strong that many AI-linked semiconductor companies don't have enough supply to meet it and have been able to raise prices, directly benefiting their bottom lines.
The AI supply chain speaks
Two names from the AI infrastructure world captured the week's optimism. Network-infrastructure provider Super Micro Computer issued an earnings-per-share forecast for the quarter ended September 30 that topped analysts' estimates. On the company's earnings call in August, CEO Charles Liang said demand for its AI and IT products was stronger than ever, and that the company had become a "one-stop shop company for customers who want to build their data center or AI factory quicker and better."
Similarly, electronics testing-gear maker and robotics developer Teradyne issued a third-quarter EPS outlook that surpassed Wall Street's expectations. Recent growth has highlighted "AI demand across all parts of the business," Teradyne CEO Greg Smith said on the company's earnings call in July.
What makes these comments matter is their specificity. These aren't chief executives issuing vague reassurances — they are executives at the companies that sell the picks and shovels of the AI build-out, describing order books that are filling faster than factories can clear them. When the people who test the chips say AI demand is touching "all parts of the business," that is a demand signal, not a sentiment signal.
Is the optimism justified?
The bullish case has real evidence behind it. The S&P 500's net profit margin hit 17.0% in the second quarter — a record in the FactSet series that runs back to 2009, and a jump of more than two full percentage points from the prior quarter's 14.8%, according to independent analysis of the earnings data. Eighty-six percent of companies reported earnings above analyst estimates, the highest share since Q2 2021, and the aggregate earnings surprise of 26.5% was the highest since FactSet began tracking the figure in 2008.
The breadth is what stands out most. All eleven sectors are projected to report year-over-year earnings growth for the third quarter, with five expected to deliver double-digit gains, led by Energy, Information Technology, Communication Services and Materials. Revenue is growing too: analysts now expect 12.3% revenue growth, up from 10.9% at the start of the quarter. Analysts are calling for 27.6% earnings growth in the fourth quarter and 32.4% for the full calendar year 2026.
The honest caveats
No earnings season is without its warning lights, and this one has a few worth naming. The weekly reading for mid-September showed more analyst downgrades than upgrades — one week doesn't make a trend, but the earnings-revision gauge bears watching. And the bar is now exceptionally high: upward revisions during the quarter mean companies must clear raised expectations, not the originals. As Wolfe Research noted, another quarter of solid revisions "creates a higher bar for companies reporting results over the coming weeks" — though its analysts added they "continue to have faith that the AI [buildout] remains strong, and this earnings season will likely act as a positive catalyst for stocks amidst a choppy macro backdrop."
Valuation is the other side of the ledger. The forward 12-month price-to-earnings ratio sits at 19.0 — below the five-year average of 19.8 and the ten-year average of 19.1, which means profit expectations have actually been doing more of the market's work than prices have. That's healthy. But a 19 multiple on record margins leaves little room for disappointment if the AI demand story stumbles.
The macro backdrop helps
The optimism is landing in a market that got a macro tailwind this week. Weaker-than-expected September employment data reduced immediate expectations of another Federal Reserve rate increase, and all three major indexes ended the week higher: the Nasdaq Composite gained about 1.1%, the S&P 500 added roughly 53 points and the Dow rose more than 180 points.
Third-quarter results start trickling in this week, with Delta, Pepsi and Levi Strauss due to report, per Investopedia. Earnings season begins in earnest next week, when numbers from big banks like JPMorgan Chase and Bank of America mark what is more or less considered the official start. Analysts raised earnings-per-share estimates 1.3% for S&P 500 companies over the course of the quarter — unusual in itself, since analysts tend to lower estimates as a quarter progresses, according to FactSet.
For now, the scoreboard says Corporate America has never been this confident about what's coming — and the record books agree. Whether the numbers back up the talk will be decided over the next few weeks, one earnings call at a time.
