A $19 billion liquidation event has forced a reckoning over auto-deleveraging mechanisms that punish winning traders to cover platform losses. On October 10, 2025, a flash crash tore through crypto markets and produced what appears to be the largest single-day liquidation event on record. ADL kicks in and forcibly closes the positions of profitable traders, effectively using their gains to plug the hole. It’s a symptom of a deeper structural issue: crypto markets still operate with enormous leverage relative to their actual liquidity. The October event demonstrated that even correct directional bets can result in losses if the platform’s risk infrastructure can’t support the trade.