<div id="readability-page-1">01:44 PM EST, 12/17/2025 (MT Newswires) -- Tech stocks were lower Wednesday afternoon, with the State Street Technology Select Sector SPDR ETF (XLK) falling 1.7% and the State Street SPDR S&amp;P Semiconductor ETF (XSD) dropping 2.2%.The Philadelphia Semiconductor index slumped 3.3%.In corporate news, Alphabet's (GOOG) Google ( GOOG ) is working on a new project to make its AI chips better at running Meta Platforms ( META )-backed (META) PyTorch, the most widely used AI software framework, in an attempt to erode Nvidia's ( NVDA ) dominance in the AI computing market, Reuters reported. Alphabet shares were down 2.3%, Meta was steady, and Nvidia ( NVDA ) fell 3.2%.Amazon.com ( AMZN ) is in talks to invest at least $10 billion in OpenAI in a deal that potentially values the company at over $500 billion, news outlets reported late Tuesday. Amazon ( AMZN ) shares rose 0.3%.Roblox ( RBLX ) is prepared to make changes to some of its features after Russian watchdog Roskomnadzor imposed a ban on the platform earlier this month over child safety issues, Reuters reported Wednesday. Roblox ( RBLX ) shares were down 1%. MT Newswires does not provide investment advice. Unauthorized reproduction is strictly prohibited.</div>

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Tech stocks fell Wednesday afternoon with major ETFs and indices dropping. Alphabet's Google is working on improving AI chips for Meta's PyTorch to challenge Nvidia. Amazon is in talks to invest $10 billion in OpenAI. Roblox is making changes after a Russian ban. Alphabet, Nvidia, and Roblox shares fell, while Amazon shares rose.

Sector Update: Tech Stocks Fall Wednesday Afternoon