S&P 500 Gains & Losses Today: Amazon Stock Jumps After OpenAI Deal; Kimberly-Clark Acquires Kenvue

Core Insights - Amazon shares surged 5% following an agreement with OpenAI for over $38 billion in cloud capacity, enhancing its AWS infrastructure and access to Nvidia GPUs for AI model training [7][9] - IDEXX Laboratories saw a 15% increase in shares after reporting better-than-expected Q3 sales and profit, raising its 2025 revenue and earnings guidance [4] - Kimberly-Clark announced a $49 billion acquisition of Kenvue, leading to a 12% rise in Kenvue shares while Kimberly-Clark shares fell over 14% [5][6] Market Performance - Major U.S. equity indexes had mixed results at the start of November, with the S&P 500 up 0.2% and Nasdaq up 0.5%, while the Dow fell 0.5% [3] - Moderna's stock dropped 8.3% amid reports of strategic talks with a major pharmaceutical company, overshadowing its announcement of a new therapy study [8][10] - Charter Communications was downgraded to "sector weight" from "overweight" by KeyBanc after reporting lower-than-expected Q3 sales and profit, resulting in a 5% decline in its stock [11]