NEW YORK—Major technology stocks posted sharp losses, signaling a broad shift in investor sentiment toward the sector. Apple shares dropped 1.3 percent to $321.66, while Alphabet fell 7.1 percent to $317.69. Amazon declined 4.6 percent to $233.66 and Meta lost 3.4 percent to $606.10, reflecting growing concerns about cash generation. The Nasdaq Composite fell 2.2 percent to 25,138.

The era of low-capital, high-margin expansion is over for these companies. Regulatory pressure across multiple jurisdictions, combined with rising costs to build and deploy AI infrastructure, is squeezing operating margins. User growth has plateaued in core markets, forcing higher capital outlays to sustain any growth at all—and that is cutting directly into free cash flow.

Valuation compression follows logically. Investors previously rewarded strong free cash flow conversion with premium multiples. Lower expected returns on capital and higher reinvestment requirements are now forcing those multiples down. Microsoft, off 2.2 percent to $381.58, and Nvidia, off 1.6 percent to $208.76, are not immune despite their central roles in AI buildout. Their investment cycles are long and returns are not immediate.

Tesla's 14.5 percent decline to $319.69 sharpens the point. The electric vehicle maker faces intensifying competition from Chinese manufacturers and persistent pricing pressure that is eroding its profit margins. The market is no longer willing to pay growth multiples for businesses that cannot demonstrate a clear path to sustainable profitability.

The pressure is forcing a rethink of core business models. Apple, long dependent on device sales, is pushing deeper into services—a segment with different growth dynamics and capital requirements. Alphabet and Meta face rising content moderation costs and stiffer competition for advertising dollars. These companies must now prove they can defend profitability in a capital-intensive, slower-growth environment.