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Shares of AI chip designer Nvidia, the market's biggest company by valuation, are off nearly 9% on fears that sales will be less than hoped, while software group Palantir Technologies is down ...

The artificial-intelligence chip maker unveiled its next-generation gaming graphic cards late Monday at the ... and mentioned Micron was providing memory for the graphics processing units.

In after-hours trading, Advanced Micro Devices was up 2.5%, Intel 0.7% higher, Qualcomm up 1.2%, and memory chip giant Micron up 1.5%.