Observed Signal · Nov 3, 2026 · Policy Update · Source: CNBC Investing · Impact: 2/5 · Sentiment: Negative
AI Bull Market Needs Tech Recovery to Advance
Market strategist Mike Santoli analyzes the recent market rotation from AI and semiconductor stocks into defensive quality names like Walmart, Berkshire Hathaway, and Eli Lilly, which have added $550 billion in market value in the past month. The S&P 500 remains stagnant, while the Nasdaq-100 has fallen nearly 11% from its record high, approaching its 200-day moving average. JPMorgan's Jason Hunter advises defensive positioning until clear bottoming signs emerge. Santoli argues that the bull market driven by AI must see tech recover for the advance to continue. He notes that AI-related stocks still constitute near 45% of the S&P 500, and past chokepoints like GPU scarcity, cloud capacity, and memory shortages have been resolved, but now the constraint is capital, raising the cost of capital for mega-caps. Despite negative sentiment and oversold conditions, valuation risks have decreased, with forward P/E down to 18.5 from 23 a year ago.
The article provides insights into market dynamics around AI stocks, relevant to investors and tech industry, but it's not directly about AdTech or MarTech.
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Key Takeaways & Evidence Grounding
- The Nasdaq-100 closed at its 200-day moving average, down nearly 11% from its record high.
- Walmart, Berkshire Hathaway, and Eli Lilly collectively added $550 billion in market value in the past month.
- AI-related stocks' weighting in the S&P 500 remains near 45%, according to Morgan Stanley.
- The S&P 500 forward P/E dropped to 18.5 from 23 a year ago.
- JPMorgan's Jason Hunter advises remaining defensive until clear bottoming evidence appears.
Connected Companies & Entities
9 Entities mapped“The three stocks above – the only members of the $1 trillion market-cap club not in Big Tech – have collectively added $550 billion in marke...”
“The three stocks above – the only members of the $1 trillion market-cap club not in Big Tech – have collectively added $550 billion in marke...”
“The three stocks above ... almost making up for what Alphabet has lost.”
“The initial scarcity of GPUs meant to own Nvidia above all else from 2023 through 2024.”
“Then memory emerged as the chokepoint and Micron and Sandisk went stratospheric.”
“Then memory emerged as the chokepoint and Micron and Sandisk went stratospheric.”
“The stampede into perceived defensive stocks has been a crucial driver of Apple shares’ massive outperformance over the Nasdaq-100 since the...”
“The AI-related stocks’ weighting in the S&P 500 is off the highs but remains near 45%, according to Morgan Stanley.”
Ontology Mapping & Concepts
Related Market Signals & Shifts
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S&P 500 ex-AI index catches up with benchmark after tech selloff
A Goldman Sachs index tracking the S&P 500 excluding 'AI enablers' has matched the traditional index's performance, both up around 12% this year. The ex-AI index briefly overtook the benchmark as investors rotated away from AI-linked stocks following a sharp selloff. Tech and AI companies now make up about 45% of the S&P 500, but the sector has fallen 7% this month. Investors are shifting to defensive sectors like consumer staples, health care, and utilities. Analysts recommend non-AI stocks for diversification, with Oppenheimer favoring commercial services and insurance. Companies like Berkshire Hathaway and Eli Lilly are noted as potential beneficiaries of the rotation.
AI Stocks Plunge, Inflation Heats Up, Yet Opportunities Remain
The article discusses last week's stock market decline driven by AI stocks and hotter-than-expected inflation data. The Nasdaq fell 4.5%, while the S&P 500 dropped 2%. However, solid bank earnings and a rotation into defensive sectors provided some optimism. AI-related stocks, particularly memory chip makers and neocloud providers like CoreWeave, experienced significant losses. Meta and Microsoft showed resilience, with Meta releasing new AI models and Microsoft reaching a record high. The article also highlights the importance of diversification and mentions portfolio adjustments, such as adding to Kimberly-Clark and trimming Cardinal Health.
Santoli: AI's Youthful Phase Over, Investors Face New Reality
CNBC's Mike Santoli argues that the 'youthful phase' of AI investing, characterized by unlimited promise and easy winners, is over. Semiconductor stocks have fallen 20% from June highs, and the S&P 500 tech sector's forward P/E has contracted from 29 to 21. The narrative has shifted from opportunity to risk, with public sentiment turning against AI and concerns about data center overbuilding. However, the purge of speculative excess may reset sentiment and prevent a 1999-style bubble. The article draws parallels to the late-1990s tech boom, noting Fed rate hikes and rising Treasury yields. A potential silver lining is that a slowdown could allow major AI capex spenders like Microsoft, Alphabet, and Meta to consolidate before further investment. The market is rewarding companies with strong free cash flow, as seen in the VictoryShares Free Cash Flow ETF's outperformance.
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