US Markets: Tech Stocks Retreat as Nasdaq and S&P 500 End Lower

A volatile session in the US markets saw a sharp divergence between sectors, with high-flying technology stocks dragging indices down while the Dow Jones managed to gain ground. Investors are currently grappling with a complex mix of geopolitical easing, rising interest rate fears, and shifting sentiment around AI capital expenditure.

Tech Sector Faces Valuation Pressure and AI Shifts

The Nasdaq Composite fell by 104.58 points, or 0.41%, to close at 25,482.46, while the S&P 500 slipped 5.86 points, or 0.08%, to end at 7,358.72. The primary culprit was the retreat in technology stocks, fueled by concerns over lofty valuations and the massive spending required for AI infrastructure.

Specific semiconductor players felt the heat. Cerebras Systems saw its stock tumble after its debut report forecasted that full-year profit margins would drop below first-quarter figures. Additionally, sentiment was impacted by OpenAI’s announcement of its in-house inference chip, 'Jalapeno.' All eyes are now on Micron Technology, which has seen a staggering 200% surge in 2026 but faced downward pressure during Wednesday's session.

Energy Easing and the Dow's Resilience

In contrast to the tech slump, the Dow Jones Industrial Average rose 187.97 points, or 0.36%, to finish at 51,854.81. This gain was supported by falling crude oil prices, which hit their lowest levels since the start of the Iran war. The dip in energy costs was driven by expectations of increased tanker movement through the Strait of Hormuz and diplomatic signals from Washington regarding Iran.

Lower energy prices provided a significant boost to the S&P 500 passenger airlines index and other travel-related stocks. Furthermore, the housing sector saw a surge; homebuilders like Hovnanian Enterprises, PulteGroup, and Toll Brothers rose after President Trump canceled bipartisan legislation intended to expedite affordable housing availability.

Macroeconomic Concerns and Fed Expectations

The broader market downturn this week has been severe, erasing more than $1 trillion in market value from the Nasdaq 100. Much of this anxiety stems from "hyperscaler" debt-backed spending and growing fears of a hawkish Federal Reserve.

According to the CME Group's FedWatch tool, traders are increasingly betting on a second rate hike by the Federal Reserve before the end of December, moving away from the previous expectation of a single 25-basis-point increase. Market participants are now looking toward Thursday’s release of the Personal Consumption Expenditures (PCE) Price Index—the Fed's preferred inflation gauge—to determine the next steps for monetary policy.

Key Takeaways

  • Tech vs. Value Divergence: High valuations and AI spending concerns dragged the Nasdaq and S&P 500 lower, while falling oil prices helped the Dow and airlines climb.
  • Semiconductor Volatility: Major players like Cerebras Systems and Micron Technology faced headwinds due to margin forecasts and new competition from OpenAI’s in-house chips.
  • Hawkish Fed Outlook: Markets are pricing in a higher probability of two interest rate hikes by year-end, with upcoming PCE inflation data serving as a critical catalyst.