According to ai_9684xtpa monitoring, the "50x leverage whale" has added margin to Hyperliquid and GMX, and opened BTC short positions.
Hyperliquid's total margin is 2.3 million USD;
GMX's total margin is 6.756 million USD.
On Hyperliquid, it shorted BTC with a 25x leverage, increasing its position to 347.82 coins, approximately equivalent to 28.87 million USD.