A Hyperliquid wallet identified as 0xff84 was forcibly liquidated for 288 BTC worth about $18.55 million as Bitcoin rose, with Hyperscan data showing 160 BTC was closed about seven hours earlier and another 128 BTC roughly an hour later. The trader had cut 300 BTC from the position the previous day but still holds a 512 BTC short position valued near $33 million, with a liquidation price of $64,665.18. Lookonchain previously said the address had built a Bitcoin short of as much as 2,000 BTC, then the largest on-chain BTC short, and had collected roughly $229,600 in funding fees. The episode highlights how leveraged bearish bets on perpetuals exchanges can unravel quickly when prices rise and margin is exhausted.