SoftBank's share price surged nearly 20% on Thursday and closed 12% higher on Friday. The stock is up over 50% this year.

SoftBank Group is closely tied to the AI boom through its stake in Arm Holdings, whose chip designs are used in AI servers and data centers powered by Nvidia systems.

SoftBank Group stock surged 15% as investors bet on its $30 billion OpenAI investment, Roze data center IPO plans, and strategic pivot away from crypto.