U.S. stock futures edged higher Wednesday, holding near record highs after Wall Street’s strongest session in weeks.
Futures on the S&P 500 rose about 0.3% in premarket trading, Dow futures added modestly, and Nasdaq 100 contracts were little changed. The moves came a day after a powerful rally: the S&P 500 climbed 1.8% on Tuesday to close at a record 7,737, its first all-time high in two months, while the Dow jumped more than 900 points to finish above 54,000 for the first time. The Nasdaq Composite led the advance, surging 2.6% as technology stocks rebounded.
Nvidia and Arista keep the AI trade in focus
The engine behind the rally is unchanged: spending on artificial-intelligence infrastructure. Nvidia rose roughly 2% in premarket trading, bucking softness elsewhere in chips, after SpaceX named the company its exclusive supplier of AI chips. The news landed alongside a report that manufacturing partner Hon Hai (Foxconn) posted a 54.2% jump in July sales — a fresh signal that data-center demand is still accelerating. Nvidia traded near $210 ahead of the bell, even as AMD, Intel and Micron slipped.
The read-through grew louder after Tuesday’s close, when Arista Networks reported its first-ever $3 billion quarter. Revenue reached $3.04 billion, up 37.7% from a year earlier, and adjusted earnings of $1.02 per share topped the $0.89 that analysts expected. The networking company guided third-quarter revenue to about $3.3 billion and raised its full-year outlook for the third time this year, citing surging AI networking demand. It also unveiled new 1.6-terabit-per-second AI fabric platforms. Semiconductor and networking names have staged a comeback in recent sessions after a summer slump, and Arista’s results gave the group another reason to run.
The breadth question
The rally’s strength is also its risk. Much of the market’s 2026 advance still rests on concentration in a handful of megacap names, and any wobble in the AI story tends to ripple across the whole index. Investors wary of that dependence have increasingly looked at S&P 500 ETFs that strip out the “Magnificent 7” as a way to diversify. For now, earnings are doing the talking: with technology up 4.2% and industrials up 3.4% on Tuesday, the move was broader than a single sector.
Easing geopolitical tension added fuel. Traders embraced hopes for progress on reopening the Strait of Hormuz, which pressured oil prices and lifted risk appetite overnight. Brent crude and WTI both eased, a modest tailwind for the inflation outlook and for consumer-facing stocks. Gold held near recent highs, and the dollar index was little changed against major peers.
What to Watch for the Open
Rates are the swing factor. The 10-year Treasury yield has hovered near the top of its recent range, and a fresh move higher could cap equities even as earnings impress. The bigger catalyst arrives Friday, when the Bureau of Labor Statistics releases the July jobs report. A soft number would strengthen the case for a Federal Reserve rate cut this fall; a hot one could revive worries about sticky inflation. The prior payrolls report already disappointed badly, and another weak print would sharpen the debate over the Fed’s next move.
Earnings season also rolls on, with more megacap and AI-adjacent results due through the week. The pattern so far is clear: companies tied to the AI build-out keep beating and raising, while the rest of the market waits on the macro data.
Bottom line: futures point to a steady open near records, but the tape is leaning almost entirely on the AI trade. Watch Nvidia and the chip complex at the bell, keep an eye on the 10-year yield, and treat Friday’s jobs report as the week’s real test.
