A 315 Ethereum($ETH) long on Hyperliquid, marked to an unrealized loss of about $27,900 and sitting less than 1% above its liquidation price, stands behind a string of sales recorded on Oct. 23. On-chain records show the wallet machibigbrother.eth, tied to Machi Big Brother (Jeff Huang), sold three Mutant Ape Yacht Club NFTs that day,…