AI Chip Stocks Slump on Wall Street Amid Valuation and Spending Concerns

A massive selloff in semiconductor stocks sent shockwaves through Wall Street this Tuesday, hitting some of the biggest winners of the artificial intelligence revolution. As investors reassess the sustainability of massive AI capital expenditures, major chipmakers and technology giants are facing a sharp market correction.

Semiconductor Giants Face Steep Declines

The semiconductor sector, particularly memory-chip makers, bore the brunt of the Tuesday selloff. Investors, who had previously fueled a massive rally in AI-linked stocks, are now retreating as they scrutinize whether current valuations are justified by actual returns.

Leading the decline in premarket trading was SanDisk, which plunged 12%. Micron Technology followed with a 9% drop, while AMD fell by 5%. The pressure extended across the industry, with Intel losing nearly 7% and Western Digital sliding approximately 8%. This downturn is particularly significant because memory chip companies were among the top market gainers in early 2026, driven by the surging demand for AI servers and data centers.

Broader Tech Correction and the Nasdaq Impact

The weakness in chips triggered a wider correction across the technology sector. Futures linked to the Nasdaq 100 fell by approximately 2.5%, a movement that puts the index on track to erase more than $1 trillion in market value. The contagion was evident among the "Magnificent Seven" tech giants, with six out of the seven companies trading lower.

The selloff was not confined to the US; South Korean memory-chip manufacturers also recorded steep losses, signaling a global reassessment of the AI-driven rally. Even SpaceX, a closely watched AI-linked listing, saw its shares fall by 3.6%, extending a three-day rout that has wiped out over $600 billion in market value and briefly pushed its valuation below the $2 trillion mark.

The Question of AI Return on Investment (ROI)

At the heart of this market volatility is a growing skepticism regarding the massive capital commitments made by Big Tech. Companies including Microsoft, Amazon, Alphabet, and Meta have committed hundreds of billions of dollars toward building AI infrastructure, including data centers and advanced computing capacity.

While the demand for AI technology remains robust, market participants are now demanding clearer evidence that these enormous investments will translate into sustainable revenue growth and profitability. The current correction suggests that many investors are opting to lock in their substantial gains following one of the most aggressive bull runs in the history of AI-related stocks.

Key Takeaways

  • Heavy Losses in Chips: SanDisk, Micron, and AMD led a significant sector-wide selloff, with SanDisk seeing a double-digit drop of 12%.
  • Trillion-Dollar Erasure: The Nasdaq 100 faced a sharp decline, threatening to wipe out over $1 trillion in market capitalization amidst a broader tech correction.
  • Focus on ROI: Investors are shifting from pure optimism to scrutiny, questioning if the hundreds of billions spent on AI infrastructure will yield rapid and sustainable returns.