According to @lookonchain, a Bitcoin OG increased his short position to 3,600 BTC, approximately $438 million notional, and is currently showing a $3.66 million unrealized loss; the reported liquidation price is $139,900, source: Lookonchain on X, Oct 10, 2025. Traders can reference the 3,600 BTC size, $438 million notional, and $139,900 liquidation as the reported risk parameters for this short, source: Lookonchain on X, Oct 10, 2025.