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.
Tech investor will face IPO test to secure investor confidence

A number of SoftBank Vision Fund's investments, like Uber Technologies, Slack and Didi Chuxing, are believed to be considering an IPO. © Nikkei montage
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.