SoftBank Jumps Over 30% as AI Rally Adds $61B in Two Sessions

SoftBank Group shares rose nearly 20% on May 21 and gained another 12% on May 22, lifting its market value by more than $61 billion across the two sessions. The move followed NVIDIA’s May 20 results and was amplified by SoftBank’s exposure to Arm Holdings and its roughly 13% stake in OpenAI, though analysts highlighted holding-company NAV discounts and leverage risk.