AI Stock Declines Leave Technology Sector as Key Driver of US Equity Market

The US stock market remains heavily influenced by technology shares despite recent declines in artificial intelligence-related companies, with the sector continuing to represent more than one-third of the S&P 500. A month of selling in technology and AI-linked stocks culminated this week in the S&P 500 information technology sector’s largest single-day decline in more than six years.

Nov 15, 2026 - 15:00
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AI Stock Declines Leave Technology Sector as Key Driver of US Equity Market
The US stock market remains heavily influenced by technology shares despite recent declines in artificial intelligence-related companies, with the sector continuing to represent more than one-third of the S&P 500. A month of selling in technology and AI-linked stocks culminated this week in the S&P 500 information technology sector’s largest single-day decline in more than six years.

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