By Natalia Kniazhevich and Geoffrey Morgan | Updated on Oct 06, 2026 at 09:06 PM
The S&P 500 closed at a record for the first time since August, buoyed by resilient corporate profits and the outlook for artificial intelligence-related spending.
The US stocks benchmark rose 0.6% Tuesday, marking the gauge’s fourth consecutive advance and longest winning streak in about two months as investors look past lingering inflation concerns. The gains were broad based, with every sector climbing except healthcare.
The technology-heav Nasdaq 100 climbed 0.5% , also closing at an all-time high. The Cboe Volatility Index, or VIX, hovered near 15, while the yield on the 10-year Treasury fell for the first time in three days.
Strong corporate earnings, enthusiasm around the AI trade and a US economy that has so far avoided a significant slowdown have fueled a roughly 14% advance in the S&P 500 this year. The rally is getting additional support from lower oil prices, which have helped temper concerns about rising consumer costs.
“Right-tail risks continue to be the pertinent one in US equities, especially in US tech,” Bank of America strategists, including Benjamin Bowler, wrote in a note to clients. “As tech optimism and FOMO overcome macro/policy uncertainty and crowd out other narratives, investors unwilling to lean into narrow AI/tech leadership increasingly risk underperforming.”
In the AI space, Marvell Technology Inc. shares jumped after raising guidance during an investor day. Vital Knowledge founder Adam Crisafulli called it a “very upbeat forecast,” making the chipmaker the latest to “provide a bullish update on conditions in the AI data center market.”
Separately, Advanced Micro Devices Inc. Chief Executive Officer Lisa Su said · chip demand is likely to remain “very high” for the next several years. Her comments come as the industry contends with growing scrutiny around AI safety.
To a large extent, investors’ confidence in the durability of this rally rests on stellar expectations for upcoming earnings from the tech giants that have driven the lion’s share of growth over the last few years. Third-quarter earnings per share for the tech sector are expected to jump around 66%, giving the group the second-fastest growth after energy, to help fuel the more than 24% rise in EPS anticipated for S&P 500 companies, according to Bloomberg Intelligence.
While semiconductor stocks have led the broader market this year, valuations for the group remain below historical averages. Overall, the earnings backdrop remains supportive for the sector.
Positioning in Nasdaq 100 futures has also improved. Citigroup Inc. strategists said the technology-heavy index posted the strongest weekly improvement in positioning among major markets as fresh risk-taking flows entered the market. Momentum has increasingly favored long positions in Nasdaq 100 futures.
In some corners of the US stock market the picture is more mixed. Strategists led by David Chew said investors are growing increasingly bearish on small caps by continuing to build short positions in Russell 2000 futures.
A major reduction in futures exposure is also worth watching. Non-dealers have sold almost $70 billion of S&P 500 futures over the past six weeks, according to an analysis of CFTC data, marking one of the largest positioning unwinds in roughly 15 years.
The scale of the selling is comparable with major positioning reversals seen in periods such as 2020 and 2022. But unlike those episodes, the market has barely moved: The S&P 500 is little changed over the six-week period.
Constellation Energy Corp. outperformed on a long-term deal to supply Google-parent Alphabet Inc. with nuclear power. The pact sparked gains in other independent power producers, including Vistra.
In deals, Paramount Skydance Corp. closed its $110 billion acquisition of Warner Bros. Discovery Inc. on Tuesday, completing · one of the biggest media mergers of all time after engaging in a bruising battle for control with Netflix Inc. and fending off antitrust lawsuits. OpenAI is holding · talks with several investment funds from the United Arab Emirates, including Abu Dhabi-based MGX, about helping anchor a $30 billion financing round for the ChatGPT maker, people familiar with the matter said.
Option Care Health Inc. jumped 33% on a Financial Times report that McKesson Corp. and private equity firm Clayton, Dubilier & Rice are nearing a deal to acquire the medical infusion-services provider. The transaction would value the company at more than $5 billion including debt. In other news, Tesla Inc. will display its Cybercab robotaxi at the Paris Motor Show that kicks off on Oct. 12, according to the event’s organizer.
In the IPO market, DayOne Data Centers Ltd. filed · for a US listing, positioning the Singapore-based company to tap continued investor appetite for AI infrastructure.