TOKYO -- SoftBank Group CEO Masayoshi Son is battling skeptics of the Japanese conglomerate's big bets on technology companies, as he prepares to tap investors for a new $100 billion fund.
The group's shares surged 18% to a four-month high of 9,962 yen on Thursday, the day after it surprised investors with a 600 billion yen ($5.5 billion) buyback and better-than-expected earnings.
