Arm Holdings plc icon

Arm Holdings plc

Arm Holdings is the IP owner and developer of the ARM architecture, which is widely used in smartphone CPU cores and other battery-powered devices. The company licenses its architecture for a fee, offering various licenses. Customers pay a royalty fee per chip shipped, whether they buy architectural licenses to modify the design (like Apple or Qualcomm) or off-the-shelf designs.

How to buy Arm Holdings plc on Grow →

Trading hours

The following are when you can trade Arm Holdings plc in Grow (24/5).

SessionHours (ET)Tradeable
Pre-market4:00 AM–9:30 AM ET
Regular9:30 AM–4:00 PM ET
After-hours4:00 PM–8:00 PM ET
Overnight8:00 PM–4:00 AM ET (next day)

Excludes US market holidays.


Arm Holdings plc is a tokenized asset that is backed 1:1 by the underlying security held at a licensed custodian. Learn more
Arm Holdings plc | Grow