Nvidia, Oracle, CoreWeave sank Oct. 8 after OpenAI revenue details emerged

Nvidia, Oracle and CoreWeave sank on Oct. 8 after details of OpenAI's revenue became known, CNBC reported. The pullback followed an early-October record for the S&P 500 and Nvidia nearing $6 trillion, per Bloomberg. For savers in index funds, it shows how heavily returns hinge on one customer turning AI spending into sales.