US Stock Market Tumbles as Tech Selloff Widens, Chip Makers Lead Decline
U.S. stock markets fell sharply on June 23-24 as semiconductor and artificial intelligence infrastructure companies sold off amid concerns that hyperscaler AI investments may not generate expected returns. The S&P 500 declined 1.4% and the Nasdaq dropped 3.3%, with memory chip stocks like Micron plunging over 13% as investors reassess the profitability of massive AI spending.
Tech Sector Under Pressure
US stock indices closed negative on Tuesday amid a selloff in heavyweight chip producers. The S&P 500 fell 1.4%, and the Nasdaq 100 lost 3.3% as AI infrastructure companies, including semiconductor and memory chip producers, tanked on increasing skepticism that AI spending by hyperscalers will not meet returns. This represents a significant reversal from months of AI-driven rally that had dominated market gains.
Semiconductor Stocks Collapse
Nvidia (-4.2%), Broadcom (-3.1%), Qualcomm (-8%), AMD (-5.8%), Micron (-13.2%), and Sandisk (-11.2%) posted losses. The severity of the declines, particularly among memory chip manufacturers, signals a fundamental reassessment of the AI investment narrative. SK Hynix slowed production of advanced AI chips to boost commodity DRAM capacity, a sign that demand for compute could slow.
Broader Market Context
The Dow Jones Index dropped 47 points or 0.09 percent on Tuesday to close at 51665 points. Losses were led by Nvidia (-3.99%), Caterpillar (-3.55%) and Honeywell International (-2.37%). Offsetting the fall, top gainers were IBM (4.92%), Merck (3.54%) and J&J (3.36%). Defensive sectors such as healthcare and consumer staples provided some support to broader indices.
Analyst Perspectives on Market Dynamics
The selloff was led by AI infrastructure firms, including semiconductor and memory chip makers, as investors grew increasingly concerned that massive AI investments by hyperscalers may generate weaker-than-expected returns. S&P 500 and Nasdaq 100 futures rose on Wednesday as investors awaited Micron Technology's earnings report, with the memory chip sector continuing to benefit from the global expansion of AI infrastructure. Micron shares gained more than 1% in after-hours trading, while competitor Sandisk added around 1%, recovering slightly after both stocks plunged over 13% during Tuesday's regular session.