AMD stock drops nearly 10% on earnings as AI data center business disappoints. Meanwhile, Nvidia pops

The AI chipmaker beat Wall Street expectations for its top and bottom line numbers, but fell short on data center sales.

Advanced Micro Devices (AMD) stock (NASDAQ: AMD) fell 9% before the bell on Wednesday after the company fell short on sales for its data centers, despite reporting better-than-expected fourth-quarter earnings. (The stock is down 7% as of midday Wednesday.)