Insider Brother's aggressive short positions in Bitcoin and Ethereum have resulted in significant losses, with 20% of the positions forcibly closed. The liquidation led to a floating loss of $8.32 million. The positions included a 40x short on 1,131 BTC, valued at $122 million, with an opening price of $104,724 and a liquidation price of $108,311. Additionally, a 25x short on 27,000 ETH, worth $68.31 million, was opened at $2,425 and liquidated at $2,459.