Nvidia stock rises in premarket as Samsung ships HBM4 memory chips; China rules in focus
Nvidia shares rose nearly 1% premarket after Samsung began shipping advanced HBM4 memory chips, a key part of Nvidia’s AI accelerators. U.S. officials said Nvidia must comply with strict export terms for chip sales to China. ByteDance is reportedly developing an AI chip and discussing memory supply with Samsung, though ByteDance disputes this. TSMC reported January revenue up 36.8% year-on-year, signaling strong AI chip demand.