On September 21, Ethereum recorded a net inflow of $37.2 million, according to Artemis data. Hyperliquid also saw a positive movement with a net inflow of $33.8 million. In contrast, Base experienced a significant net outflow of $53.4 million, while Arbitrum faced a net outflow of $23.6 million. These figures underscore the diverse financial dynamics across blockchain platforms on this date.