Shares of SoftBank, biggest investor in Didi, sink after China blocks app

Shares in SoftBank Group Corp. tumbled Monday after Chinese regulators ordered app stores to remove Didi Chuxing, run by the recently U.S.-listed ride-hailing giant in which the Japanese firm is the top shareholder.

The government also widened its probe of U.S.-listed tech firms to include Full Truck Alliance Co., another SoftBank investment. SoftBank fell 5.4% in Tokyo, the most among stocks on Japan’s Nikkei 225 Stock Average and the biggest decline since it reported earnings in May.

The investigations have dealt another blow to the shares of Masayoshi Son’s tech and investing conglomerate, which have lost nearly