1. SBI Shinsei Bank raised $2.4 billion in Tokyo's stock market. 2. Shares surged 16%, ending at ¥1,623 from an offering price of ¥1,450. 3. Bank aims to diversify funding and leverage Japan's normalizing interest rates. 4. Support from major investors includes KKR and Norinchukin Bank. 5. Corporate governance reforms are boosting Japan’s business sentiment.