AMD Shares Edge Higher Premarket on March 18, 2026 After Expanded AI Memory Deal With Samsung
Advanced Micro Devices stock is moving higher in premarket trading on March 18, 2026 after the company signed a wide-ranging AI memory supply memorandum of understanding with Samsung Electronics. The agreement positions Samsung as the primary HBM4 supplier for AMD’s upcoming Instinct MI455X GPU and extends to DDR5 for next-generation EPYC processors, while AMD shares trade around $198.95, up about 1.34% from the prior close.