Mumbai's financial markets witnessed a notable surge this Tuesday, July 15, 2025 , as Yes Bank shares climbed approximately 3% following widespread reports of a significant investment by Japan's Sumitomo Mitsui Financial Group ( SMFG investment ). The news, which quickly became a focal point in Indian banking stocks discussions, suggests that SMFG, a major global financial services institution, is poised to inject a substantial $1.1 billion into Yes Bank.