Dell stock plunges 11%, leading data center sell-off on AI concerns

A Barclays downgrade and a hot inflation print knocked Dell and its AI infrastructure peers sharply lower Dell Technologies had a very good year right up until Tuesday. Shares fell 11.6% on October 14, 2026, closing at approximately $506. The drop came amid concerns that enterprise spending on AI may not be enough to keep data center equipment sales climbing. Dell wasn’t alone. It led a broader sell-off across the companies building and financing AI’s physical backbone. The immediate trigger was a downgrade from Barclays.

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