Arm faces US antitrust probe after announcing plan to design its own chips

Arm’s move into in-house chip design isn’t just a business model shift—it undermines its foundational neutrality as an IP licensor. Technically, any preferential access to advanced architectures or degraded Cortex licensing would accelerate rivals like Qualcomm and MediaTek toward RISC-V, triggering cascading changes across EDA stacks, verification ecosystems, and foundry collaboration. Regulatory scrutiny from the FTC not only inflates legal overhead but may force structural remedies that erode Arm’s leverage with TSMC and others. Strategically, NVIDIA—despite abandoning its acquisition—advances vertical integration via Grace, while Apple and Samsung could double down on custom CPUs to reduce dependency. Within 18 months, if Arm fails to erect credible firewalls between its licensing and design arms, the mobile and edge compute landscape will fragment, handing RISC-V its most decisive expansion window yet.