Dow opens 153 pts lower as AI selloff and oil surge hit US stocks

• Nvidia dropped 5.6% and other chip stocks fell 4-8.8% after OpenAI's Sam Altman and Elon Musk backed Anthropic CEO's call to slow AI model advancement, raising concerns about reduced infrastructure spending.
• Brent crude climbed over 4% to $109 per barrel after Saudi Arabia shut a key pipeline, adding inflationary pressure ahead of the Fed meeting where an 88-89% probability of a rate hike is priced in.
• Software companies facing AI disruption moved higher, with ServiceNow up 5.6%, Adobe and Workday gaining 3.8-4%, and Meta and Alphabet rising over 1% as investors rotated into 'AI-enabled productivity' plays.

Market Summary: AI Selloff and Oil Surge Pressure US Equities

Key Market Movements

US markets opened sharply lower on Monday, September 14, 2026, with the Dow Jones falling 153 points, the S&P 500 down 0.74%, and the Nasdaq declining 1.22%. The selloff was driven by concerns over AI development pace and surging oil prices.

AI Sector Divergence

Major semiconductor and AI infrastructure stocks experienced heavy selling pressure. Nvidia dropped 6.8%, while Broadcom, AMD, and Marvell Technology fell between 4% and 8.8%. The decline followed calls from senior AI executives, including Anthropic CEO Dario Amodei, OpenAI's Sam Altman, and Elon Musk, for slower AI development amid safety concerns.

Conversely, software companies benefiting from AI applications rallied. ServiceNow surged 5.6%, Adobe gained 3.8%, and Workday rose 4%. Meta advanced over 1%, and Alphabet climbed 1.4%, reflecting a rotation from AI infrastructure to AI-enabled productivity plays.

Energy Market Surge

Oil prices spiked significantly, with Brent crude climbing 4% to $109 per barrel and WTI rising 3% to $103.98. The increase followed Saudi Arabia's shutdown of a key pipeline bypassing the Strait of Hormuz amid escalating Middle East tensions.

Federal Reserve Outlook

Investors are bracing for the Fed's September policy meeting this week, with CME's FedWatch tool pricing an 88-89% probability of a rate hike. Rising oil prices and accelerating inflation data complicate the central bank's policy decisions.

Market Implications

The dual pressure from AI concerns and energy prices contributed to the Dow's 1.6% weekly decline—its largest since March. Investors are reassessing AI valuations while monitoring inflationary pressures from elevated oil prices.