China's Didi raises $4.4 billion in upsized U.S. IPO China's Didi raises $4.4 billion in upsized U.S. IPO June 30, 2021 dzadmin Comments 0 Comment The ride-hailing service sold 316.8 million American Depositary Shares, versus the planned 288 million, at $14 apiece, valuing Didi at about $73 billion.