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    Tech Stock Rotation Drives Nasdaq Decline Amid AI Investment Doubts

    Section editor: ·Moderate3 articles covering this·3 news sources·Updated an hour ago·World
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    A visual representation of the tech stock rotation, highlighting the decline in semiconductor stocks and the rise in defensive sectors.

    What happened

    On October 23, 2026, a significant rotation occurred in the U.S. equity markets as investors moved capital from tech stocks to defensive sectors.

    The Context

    • Investor sentiment shifted due to doubts over the returns on substantial AI capital expenditures by major tech players like Meta and Tesla.
    • Semiconductor stocks faced sharp declines, with the PHLX Semiconductor Index dropping over 15% in October, indicating a concentrated risk in AI investments.
    • Defensive sectors like staples, energy, and utilities outperformed during this period, reflecting a strategic pivot by investors seeking stability.

    The Number

    15%

    — This approximate decline in the PHLX Semiconductor Index (SOX) during October 2026 highlights the volatility in tech investments and the potential risks of concentrated bets in AI.

    Takeaway

    As the market continues to show volatility, expect further shifts in investment strategies as professionals seek safer havens amid tech uncertainties.

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