Wall Street faces rate and AI volatility as higher borrowing costs test stock selection

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Wall Street rate & AI volatility

Highlights

Federal Reserve raises benchmark rate by a quarter point to 3.75%-4%, triggering a 1.7% Dow decline for the week with banks like Goldman Sachs losing 8.5%.
AI-related shares including Intel and Micron fall over 5% early in the week amid public safety debate, but rebound as worries about delayed AI buildout ease.
Salesforce beats analyst expectations with a new forecast for over $63 billion in fiscal 2030 revenue and unveils AIforce and Koa reasoning model with Nvidia.

Fed tightening and sector pressure shape trading

As reported by CNBC, investors are adjusting to a new Federal Reserve rate-hiking cycle after the central bank raises rates by a quarter percentage point, taking its benchmark rate to 3.75% to 4%, its first increase in three years. Fed Chairman Kevin Warsh says inflation is too high and has been elevated for too long, and his comments on price pressures help send stocks sharply lower midweek before a partial rebound later in the week.

The Dow falls 1.7% for the week, its third straight weekly loss, with banks among the biggest drags. Goldman Sachs loses nearly 8.5%, while Wells Fargo, BNY and Capital One also decline sharply as higher rates raise concerns about deposit costs, loan growth and broader economic activity.

Oil adds another layer of uncertainty, with U.S. benchmark West Texas Intermediate and Brent crude earlier in the week touching their highest levels since mid-May on Middle East supply concerns. Although prices later ease, the earlier surge weighs on oil-sensitive stocks including Boeing and FedEx-related names, while the 10-year Treasury yield ends the week back at 5% after briefly topping 5.04%.

AI debate reshapes technology and software outlook

The artificial intelligence trade wobbles as a public debate over AI safety intensifies after Anthropic chief executive Dario Amodei calls for a slowdown in frontier model development in a Sept. 12 essay. OpenAI's Sam Altman and SpaceX's Elon Musk support those concerns, while Nvidia chief executive Jensen Huang argues companies can build and test safeguards without industry-wide coordination.

AI-linked shares initially sell off, with Intel and Micron each dropping more than 5% on Monday and data center plays GE Vernova and Eaton falling even more on fears that slower model development could curb infrastructure spending. Those losses largely reverse as the week progresses and investors grow less concerned that the safety debate will significantly alter the pace of AI buildout in the U.S. and globally.

Cybersecurity stocks benefit from the view that stronger AI systems create new risks for companies, supporting demand for digital defenses. CrowdStrike and Palo Alto Networks are among the strongest performers of the week, while Salesforce also uses its Dreamforce conference to argue that AI is becoming a growth opportunity for enterprise software rather than a disruption threat.

At its investor event, Salesforce forecasts more than $63 billion in fiscal 2030 revenue, above analyst expectations of $59.2 billion, and introduces AIforce and its Koa reasoning model developed with Nvidia. The company is also emphasizing how AI can improve clients' use of data across marketing, customer service, commerce and sales operations, adding to signs that software groups are adapting to the next phase of enterprise AI spending.

Technology stocks regaining market leadership was the focus of our earlier coverage, as investors weighed the outlook for U.S. monetary policy and the resilience of growth sectors. That piece noted expectations for one more Fed rate hike while emphasizing that the bar for additional tightening beyond that remains high, keeping markets sensitive to inflation and growth risks.

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