$DiDi Global (Delisted) (DIDI.US)$ In Q1 2021, DiDi's trading volume was $9.5 billion, while Uber's was $19.5 billion, roughly double that of DiDi's. The reason for DiDi's revenue scale being higher than Uber's is mainly due to the difference in revenue statistics between the two. Based on this calculation, DiDi's stock price should be about 21% of Uber's, approximately $9.98.