A mystery whale has just added another $10 million to his existing 20x leveraged Bitcoin (BTC) short, bringing the total position size to $411.8 million. This significant leveraged bet against BTC suggests that a large trader anticipates near-term downside or heightened volatility, which could trigger a cascade of liquidations if BTC price drops further. Traders should closely monitor Bitcoin derivatives markets and whale activity for potential bearish momentum and increased risk of short squeezes or further sell-offs.