SoftBank Group (9984.T) is trading 13.96% up today at ¥5,958. * The surge is driven by better-than-expected Q1 FY2027 operating profits from its core subsidiary, SoftBank Corp. (9434.T), which reported strong AI and cloud business growth guidance on August 4. * Further momentum came from a 17.36% overnight rally in Arm Holdings (ARM), a major SoftBank investment, combined with a broader AI-led rebound in Japanese tech shares. * The stock gained momentum from August 5, when it surged over 11% intraday.