Sector Update: Tech Stocks Fall Late Afternoon

04:00 PM EDT, 09/14/2026 (MT Newswires) -- Tech stocks were lower late Monday afternoon, with the State Street Technology Select Sector SPDR ETF (XLK) falling 1.8% and the State Street SPDR S&P Semiconductor ETF (XSD) dropping 6.3%. The Philadelphia Semiconductor index lost 5.8%. In corporate news, Amazon-backed (AMZN) Anthropic CEO Dario Amodei called for the AI industry to slow the pace of model capability development, saying that accelerating advances and recent alignment incidents could outpace efforts to ensure AI safety. Amazon shares were down 1.2%. Microsoft-backed (MSFT) OpenAI CEO Sam Altman said the company's highly anticipated initial public offering will not take place in 2026 due to ongoing concerns around safety and control in the AI sector, Fortune reported, citing an interview with Altman. Separately, Microsoft has posted a document outlining the intended behavior and values of the company's future AI models. The tech giant said the document is being shared for public consultation. Microsoft shares were up 2.1%. Nvidia (NVDA), Palantir (PLTR) and Booz Allen Hamilton (BAH) have started demanding guarantees or eliminating use of Anthropic's and OpenAI's most advanced models over concerns that the AI giants could retain their customers' critical data, The Information reported. Microsoft has started leveraging that unease to try to lure OpenAI clients to its own AI products, and it has pitched its own isolated cloud environments to customers worried about privacy, the report said. Nvidia shares fell 3.2%, Palantir rose 3.7%, and Booz Allen was up 4.2%. Oracle (ORCL) has started a new round of layoffs after cuts to its workforce earlier this year, Business Insider reported. Oracle shares fell 3.9%.