SoftBank: inside the two weeks of turmoil that squeezed Masayoshi Son

How the Japanese billionaire was forced to take drastic action to shore up confidence in his tech empire. "The value of SoftBank’s Tokyo-traded shares had fallen to $51bn (¥5.6tn), a 70 per cent discount to its asset value. The group’s market capitalisation was less than that of SoftBank Corp, the listed Japanese telecoms group in which it has a two-thirds stake." Kana Inagaki, Leo Lewis and Arash Massoudi, writing in the Financial Times, explain.