U.S. semiconductor and memory shares advanced on May 28 after reports said ByteDance is developing custom CPUs for AI infrastructure, while the move also signals deeper vertical integration amid chip supply constraints.
U.S. semiconductor and memory stocks rose on May 28 after reports said ByteDance is developing custom central processing units to support artificial intelligence infrastructure and is purchasing from AMD. SanDisk gained 5.7%, AMD rose 5.2% and Qualcomm added 5.1%. The development underscores both investor sensitivity to AI-related chip demand and a broader push toward vertical integration, as large technology companies design more hardware in-house to improve control over performance, supply, and deployment during chip shortages. The shift could affect traditional chipmakers by changing demand patterns even as some suppliers may still benefit from related purchases.