BitMEX co-founder Arthur Hayes has bought about $2.2 million of synapse (SYN), throwing his weight behind an onchain options exchange he says could take on Deribit within the Hyperliquid ecosystem. Key TakeawaysArthur Hayes bought 6.16 million SYN worth about $2.2 million via Flowdesk on June 29.He named Hypercall, an options platform on Hyperliquid, as a challenger to derivatives venue Deribit.SYN has surged more than 10x in June, lifting Synapse’s market value toward $60 million.