Nvidia stock was rising early Friday. A solid week for the artificial-intelligence chip maker is coming to a close. As of Thursday’s close, the stock was up 4% over the past four days, recouping a good chunk of its losses from the previous week when excitement about Chinese start-up DeepSeek sparked a brutal selloff.

AMD stock is down as the AI chipmaker beat Wall Street expectations for its top and bottom line numbers, but fell short on data center sales.

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.

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.

By Kanchana Chakravarty and Zaheer Kachwala (Reuters) -Advanced Micro Devices shares tumbled more than 10% on Wednesday after the company's AI chip revenue failed to meet lofty expectations, reinforcing its struggles to grab market share from well-entrenched market leader Nvidia.

Shares in the AI chip maker rose 5% Wednesday and was up again early Thursday as Big Tech's spending plans remained in focus.