US Markets: Tech Megacaps Drag Nasdaq and S&P Lower Amid Inflation Fears

US equity markets showed mixed signals on Thursday as a slump in Big Tech heavyweight stocks overshadowed a massive surge in the semiconductor sector. While the Dow Jones managed to climb, the Nasdaq and S&P 500 faced downward pressure driven by concerns over AI spending sustainability and rising inflation.

The Big Tech Drag vs. Semiconductor Surge

The Nasdaq Composite fell by 120.07 points, or 0.47%, to close at 25,356.57, while the S&P 500 dipped slightly by 0.01% to end at 7,357.17 points. This decline was largely driven by a reversal in early gains from tech giants, including Nvidia, Microsoft, and Alphabet. Apple also faced selling pressure after raising prices for iPads and MacBooks to mitigate rising memory and storage costs.

In stark contrast, the semiconductor sector provided a significant cushion. Micron Technology’s shares soared following earnings and forecasts that beat Wall Street estimates, leading to gains for Sandisk, Qualcomm, Western Digital, and Seagate Technology. The Philadelphia SE Semiconductor index is currently on track for its strongest quarter on record.

The AI Spending Dilemma: Who Pays the Bill?

A central theme emerging from the trading session was the growing anxiety regarding "hyperscaler" spending on Artificial Intelligence. While companies like Micron are seeing record revenues from AI demand, investors are questioning the long-term sustainability of this expenditure.

Carol Schleif, Chief Investment Officer at BMO Family Office, noted that the market is beginning to realize that one company's blowout earnings may come at the expense of another's future margins. This sentiment reflects a shift in investor focus from pure AI optimism to a more cautious evaluation of who is ultimately financing the massive infrastructure build-out.

Inflation Data and the Federal Reserve Outlook

Economic data released by the U.S. Department of Commerce added a layer of complexity to the market movement. U.S. inflation rose in May, breaking above the 4.0% threshold for the first time in three years, primarily due to higher energy prices.

This "toasty" inflation data has heightened expectations for a more hawkish Federal Reserve. According to LSEG data, traders are now anticipating that the Fed will lift interest rates by at least 25 basis points before the end of the year. On a positive note, first-quarter GDP growth was revised upward to 2.1% from a prior estimate of 1.6%, and jobless claims showed a higher-than-expected decline, signaling a resilient labor market.

Notable Corporate Moves

Beyond the tech sector, the biotech industry saw significant movement. Bio-Techne Corp saw its stock jump following news that Germany's Merck KGaA has agreed to acquire the firm for $73 per share in cash, a deal representing an enterprise value of approximately $11.3 billion.

Key Takeaways

  • Tech Divergence: While semiconductor stocks like Micron and Qualcomm surged on robust AI demand, Big Tech giants like Apple, Microsoft, and Alphabet dragged the Nasdaq and S&P 500 lower.
  • Inflationary Pressure: US inflation has breached the 4.0% mark, increasing market bets on a potential 25-basis-point interest rate hike by the Federal Reserve later this year.
  • AI Sustainability Concerns: Investors are pivoting toward scrutinizing the high costs of AI infrastructure and how hyperscaler spending impacts the broader tech ecosystem.