Tech Stocks Post Worst Single-Day Drop Since 2020 Amid AI Selloff
The S&P 500 shed an estimated $2.9 trillion in market cap in a single session, marking the largest one-day value loss on record.
Technology stocks suffered their steepest single-session decline since 2020 on Monday as a broad selloff swept through artificial intelligence-related equities, erasing an estimated $2.9 trillion in S&P 500 market capitalization — the largest one-day destruction of market value ever recorded.
The rout represented a sharp and sudden reversal of fortune for the AI trade, which had been one of Wall Street's most crowded and profitable bets in recent years. Investors who had piled into chipmakers, cloud computing providers, and other AI-adjacent companies bore the brunt of the losses as sentiment shifted rapidly across the sector.
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The scale of Monday's decline underscored the vulnerability embedded in markets that had priced in substantial future growth from artificial intelligence technologies. When confidence in that growth narrative wavered, the concentrated positioning of institutional and retail investors alike amplified the downward move, turning a correction into a rout.
Market observers noted that a single session of this magnitude — both in percentage terms for tech shares and in absolute dollar losses for the broader index — reflects how much speculative capital had accumulated in AI-linked names over the preceding bull run. The correction raises fresh questions about valuation discipline and the durability of the AI investment thesis at current price levels.
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