Nvidia was gaining early on Wednesday after Google-parent Alphabet committed to spending on artificial-intelligence infrastructure and rival Advanced Micro Devices’ AI chip revenue disappointed. Nvidia shares were up 0.

Alphabet's big spending plans surprised Wall Street. The news should soothe investors worried about last week's DeepSeek shakeup disrupting the AI narrative.

Advanced Micro Devices (AMD 4.58%), and Micron Technology (MU 0.82%) plunged on news that a Chinese start-up called DeepS

By Kanchana Chakravarty and Zaheer Kachwala (Reuters) -Advanced Micro Devices shares tumbled 8% on Wednesday after the company's AI chip revenue failed to meet analysts' high expectations, underscoring its struggle to grab market share from well-entrenched market leader Nvidia.