back
Get SIGNAL/NOISE in your inbox daily

AI and tech stocks declined this week as Wall Street’s summer rally lost momentum, with the Nasdaq falling 0.67% on Wednesday after a 1.46% drop on Tuesday. The pullback reflects growing investor caution about AI valuations and comes ahead of Federal Reserve Chair Jerome Powell’s closely watched speech at Jackson Hole on Friday, which could signal the central bank’s rate-cutting plans.

What you should know: Major AI and tech stocks are experiencing their first significant correction after months of gains driven by artificial intelligence enthusiasm.

  • The Nasdaq was on track to snap back-to-back weeks of gains, while the S&P 500 posted its fourth consecutive day of losses.
  • Palantir, an AI-focused data analytics company, fell 1.1% on Wednesday after dropping 9.35% on Tuesday, while Nvidia edged down 0.14% following a 3.5% decline the previous day.
  • All seven “Magnificent Seven” tech stocks—Apple, Alphabet, Amazon, Meta, Microsoft, Nvidia, and Tesla—fell on both Tuesday and Wednesday.

The big picture: Investor sentiment around AI investments is shifting as concerns mount about whether the current market enthusiasm has outpaced underlying fundamentals.

  • “Investors rotated out of high-momentum tech stocks, reflecting renewed jitters over the sustainability of the AI trade,” said Ulrike Hoffmann-Buchardi, head of global equities at UBS, a global investment bank.
  • The Magnificent Seven now represent 33.5% of the S&P 500’s total market value, giving them outsized influence on broader market performance.

What triggered the pullback: Recent comments from OpenAI CEO Sam Altman and new research questioning AI returns appear to be dampening investor confidence.

  • “Are we in a phase where investors as a whole are overexcited about AI? My opinion is yes,” Altman told reporters last week, according to The Verge.
  • MIT researchers published a report Monday showing that most companies testing generative AI tools are seeing zero returns.
  • AI chip companies Advanced Micro Devices and Marvell Technology were each down almost 7% for the week.

What they’re saying: Market analysts view the decline as a natural pause rather than the end of the AI boom.

  • “It’s just a pause that may refresh as investors retrench and rethink how they want to position their tech dollars,” said Rob Haworth, senior investment strategy director at US Bank Asset Management Group.
  • “Tech stocks have had a massive run, so I think it’s just typical that investors are starting to take some chips off the table going into Labor Day,” said Dan Ives, head of global technology research at Wedbush Securities.

Key context: The selloff comes during historically weak market conditions and ahead of Powell’s Jackson Hole speech.

  • About 70% of S&P 500 stocks closed higher on Tuesday, with investors rotating into defensive sectors like consumer staples, utilities, and real estate.
  • Nvidia had surged 93% since its early April low point, while Palantir remains up 106% year-to-date despite recent declines.
  • “We’ve been expecting this type of a pullback,” said Jay Hatfield, CEO at Infrastructure Capital Advisors, noting the start of a historically weak season for stocks.

Recent Stories

Oct 17, 2025

DOE fusion roadmap targets 2030s commercial deployment as AI drives $9B investment

The Department of Energy has released a new roadmap targeting commercial-scale fusion power deployment by the mid-2030s, though the plan lacks specific funding commitments and relies on scientific breakthroughs that have eluded researchers for decades. The strategy emphasizes public-private partnerships and positions AI as both a research tool and motivation for developing fusion energy to meet data centers' growing electricity demands. The big picture: The DOE's roadmap aims to "deliver the public infrastructure that supports the fusion private sector scale up in the 2030s," but acknowledges it cannot commit to specific funding levels and remains subject to Congressional appropriations. Why...

Oct 17, 2025

Tying it all together: Credo’s purple cables power the $4B AI data center boom

Credo, a Silicon Valley semiconductor company specializing in data center cables and chips, has seen its stock price more than double this year to $143.61, following a 245% surge in 2024. The company's signature purple cables, which cost between $300-$500 each, have become essential infrastructure for AI data centers, positioning Credo to capitalize on the trillion-dollar AI infrastructure expansion as hyperscalers like Amazon, Microsoft, and Elon Musk's xAI rapidly build out massive computing facilities. What you should know: Credo's active electrical cables (AECs) are becoming indispensable for connecting the massive GPU clusters required for AI training and inference. The company...

Oct 17, 2025

Vatican launches Latin American AI network for human development

The Vatican hosted a two-day conference bringing together 50 global experts to explore how artificial intelligence can advance peace, social justice, and human development. The event launched the Latin American AI Network for Integral Human Development and established principles for ethical AI governance that prioritize human dignity over technological advancement. What you should know: The Pontifical Academy of Social Sciences, the Vatican's research body for social issues, organized the "Digital Rerum Novarum" conference on October 16-17, combining academic research with practical AI applications. Participants included leading experts from MIT, Microsoft, Columbia University, the UN, and major European institutions. The conference...