EthereumFi [ETHFi] is grabbing eyeballs after a major exchange listing and a well-timed trade.Just hours before South Korea’s Upbit announced an ETHFi listing, Arthur Hayes was seen buying the token. For context, this listing is quite significant, given South Korea’s strong retail participation and preference for altcoins.Arthur Hayes, co-founder of BitMEX and CIO of Maelstrom, accumulated ETHFI shortly before a key listing on South Korea’s largest crypto exchange, Upbit.Per data from Lookonchai