S&P 500 and Nasdaq hit record highs as AI-driven tech stocks surge
Wall Street's major indexes set new peaks on the back of AI names, even with borrowing costs near multi-year highs
The S&P 500 and the Nasdaq both closed at record highs, powered by another strong session for tech stocks and a dip in bond yields.
The numbers behind the new peaks
The Nasdaq Composite led the way on October 5. It closed at a record near approximately 27,477, a gain of about 0.8ā1.1% on the day.
The S&P 500 followed on October 6. During trading it touched approximately 7,830ā7,840, clearing its prior peak of 7,816.7.
That marks the index’s 28th record high of 2026. Year to date, the S&P 500 is up more than 14%.
Artificial intelligence stocks did most of the work. Nvidia climbed approximately 1ā2.2%, pushing its market value toward $6 trillion.
Nvidia had company. Meta, Microsoft, Tesla, and Broadcom also added to the gains.
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Yields eased, but borrowing costs remain heavy
The 10-year Treasury yield sat between 5.29ā5.35%. Those are its highest levels since the 2002ā2007 period.
Inflation and fiscal worries also sat in the background, keeping overall sentiment mixed. Oil prices eased slightly, offering a bit of relief on the cost side.
A rally built on a short list of names
Gains have concentrated heavily in companies seen as AI beneficiaries. Because the S&P 500 and Nasdaq weight their largest members most heavily, a handful of giants can lift the whole index.
Earnings expectations are a big part of the bullish case. Projections for the upcoming quarter call for corporate earnings growth of approximately 29.5% year over year, with AI investment driving much of that figure.
What this means for investors
The immediate test is earnings season. With growth projections around 29.5%, the bar is high, and AI-linked companies carry most of the expectation.
Interest rates are the second pressure point. A 10-year yield in the 5.29ā5.35% range is already the highest in roughly two decades, and further increases could squeeze sectors that have yet to join the rally.
Watch three things in the weeks ahead. First, whether earnings from AI leaders meet those lofty projections. Second, whether Treasury yields keep easing or push higher again. Third, whether participation broadens beyond the megacap tech names.