Tech stocks rebound as AI-spending jitters ease after brief selloff

The S&P 500 closed up 0.37% on Tuesday, ending a brief but sharp selloff in AI and tech stocks that had pushed the Nasdaq into correction territory only a day earlier. The recovery, led by chipmakers, marks the first positive close after four sessions of declines for some of the market's most closely watched AI names, and it comes at a moment when investors are weighing two forces at once: anxiety over the scale of AI spending and the policy uncertainty of the US midterm elections held the same day.

What happened on Tuesday?

The numbers tell the story of a market steadying itself. The S&P 500 gained 0.37% at market close. The tech-heavy Nasdaq rose 0.83%. The Dow Jones Industrial Average moved in the opposite direction, dropping 0.38%, dragged down by Apple. Apple's shares fell 1.9% after the company released a worse-than-expected margin forecast, citing the higher cost of memory chips.

The chip sector, which has become the bellwether for AI investment sentiment, rallied. Nvidia gained 2.3%, snapping a losing streak that had run more than four sessions. Fellow chipmakers Advanced Micro Devices, Broadcom and Micron Technology also jumped on the day.

That divergence matters. The Dow's decline, driven by Apple's margin warning, points to a cost pressure working through the hardware supply chain: memory chips have become more expensive. The Nasdaq's gains, driven by the same semiconductor complex, point to continued investor conviction in AI infrastructure. Both signals come from the same industry.

How bad was the selloff?

The context for Tuesday's rebound is a steep, fast decline. The selloff in AI and tech stocks started last week and ran into Monday, when the Nasdaq ended the session in correction territory — defined as a drop of 10% from a recent peak — falling 10% from its record close of 6 October. The index had already posted its largest monthly decline since March 2025 in October.

For a market that has been built substantially on AI enthusiasm, that correction was the sharpest reminder in months that valuations anchored to AI infrastructure spending can move in both directions. Tuesday's close, modest as it was, put a pause on that slide.

Did the midterm elections move markets?

Tuesday's midterm elections did not appear to have a huge impact on Wall Street, according to the coverage of the session. But investors were watching the results for one specific reason: the prospect of new AI regulation. Investors predicted Democrats would take at least a majority in the House and potentially gain seats in the Senate — an outcome that could lead to more AI regulation.

That regulatory overhang is the policy stake beneath the trading data. The companies that led Tuesday's rebound — Nvidia, AMD, Broadcom, Micron — are the suppliers of the chips and infrastructure used to power AI, the exact layer of the economy that new regulation would most directly touch.

There is also a historical pattern at work. An analysis from CNBC of post-midterm market performance from 1980 to 2024 showed the market tends to pick up after an election. Wall Street is often jittery before an election, when results are uncertain, but tends to recover once the results are settled. Tuesday's rebound fits that pattern, though the selloff that preceded it had its own driver: investor unease over AI spending.

What else eased investors?

Oil played a supporting role in the recovery. Brent crude, the global oil benchmark, dropped to $103 a barrel on Tuesday, down from $117 a barrel at the end of October. The decline came amid potential new negotiations with Iran and Russia. Lower oil prices ease pressure on inflation and on corporate costs, and small drops in oil prices helped calm investors alongside the equity rebound.

The oil move is not an AI story in itself. But in a market nervous about cost pressures — Apple's margin warning on memory chips being the clearest example of the day — falling energy prices removed one more source of anxiety.

Why does the AI spending debate matter?

The backdrop to the week's volatility is a widening gap between Wall Street and main street. While many Americans said frustration with the higher cost of living would be a major factor in their vote on Tuesday, Wall Street has continued to soar off investments in AI — particularly the chips and infrastructure used to power the technology.

The year-to-date figures quantify that divergence. The S&P 500 is up 10% so far this year. The Nasdaq is up 9%. The Dow is up 7%. Those gains, accumulated over roughly ten months, were large enough that last week's selloff — which erased 10% from the Nasdaq in about a month — still left the index in positive territory for the year.

The tension investors are now pricing is straightforward. The same AI infrastructure buildout that has driven the market higher requires enormous spending, and the selloff that began last week reflected spooked investors questioning that spending. Tuesday's rebound suggests the fear receded faster than it built. Whether it stays receded depends on the next round of earnings signals from the chipmakers and hardware companies at the center of the trade — and on whether a new Congress acts on AI regulation in the session ahead.