Arm Holdings stock after-hours at EUR 252.75: minus 2.79 percent versus the prior close
Published on 09/30/2026 at 18:49 | Editorial responsibility: Rafael MĂĽller, Editor-in-Chief AD HOC NEWS
Arm Holdings stock was at EUR 252.75 after-hours at 6:44 p.m. CEST on September 30, 2026, down 2.79 percent versus the EUR 260.00 prior close of September 29, 2026, at Lang & Schwarz.
Trading day in Europe
The Lang & Schwarz indication was EUR 252.75, compared with a EUR 260.00 prior close. The further course of after-hours trading at Lang & Schwarz until 11:00 p.m. CEST is shown by the continuously updated real-time quote of Arm Holdings stock.
Arm outlines secure AI infrastructure
In a September 28, 2026, post, the Arm Newsroom described a joint architecture with NVIDIA’s Open Agent Safety Platform. Arm said its CPUs can run agentic workloads while Arm-based infrastructure processors, including data processing units, provide independent observation, isolation, policy enforcement and security.
The post said NVIDIA BlueField-4 uses 64 Arm Neoverse V2 cores to provide an independent infrastructure environment beyond the host. It also said OpenShell integrates with NVIDIA Sentry on BlueField to extend policy enforcement into a separate trust domain, where unsafe agent behavior can be monitored and quarantined, according to the Arm Newsroom.
Neoverse CSS N4 and Arm AGI CPU
In a September 8, 2026, release, Arm said its Neoverse Compute Subsystems N4 supports up to 128 cores per die, LPDDR6 memory and PCIe Gen 7 connectivity. Arm reported that N4 delivers up to twice the performance, up to 1.25 times the performance per watt and up to 1.75 times the memory bandwidth of Neoverse CSS N3.
