A Delaware jury ruled that Qualcomm had a valid license to use Arm’s basic chip architecture for central processors it developed with the acquisition of a startup called Nuvia in 2021. The ruling paved the way for Qualcomm to continue selling those chips, which are at the heart of a range of devices including Microsoft Surface laptops. Qualcomm’s stock rose 1.8% in after-hours trading, while Arm’s stock fell 1.7%.