Sumitomo Mitsui Financial Group Inc. said Thursday it will acquire a roughly 10 percent stake in Japanese internet financial giant SBI Holdings Inc. in a deal worth 79.6 billion yen ($585 million) to strengthen its online brokerage service.Through the capital alliance, the two financial giants aim to expand their customer base by making use of SMFG's wide customer base, ranging from retail to corporate clients, and SBI Holdings' younger customers.In a rare deal for a Japanese banking group to acquire a stake in a major online brokerage, the two companies will expand their partnership from t…READ FULL ARTICLE