BTC shows signs of rebound starting in the afternoon. Around Christmas, the US market enters a holiday window, and institutional investors exit the market. During this period, retail investor sentiment and technical factors often dominate the trend, potentially triggering market correction.

On the strategic level, it is recommended to consider short positions above $90,000, with Ethereum following the same logic. Due to relatively high market volatility, a 10x leverage can be used to increase the tolerance for errors—so even if sudden reverse fluctuations occur, there is enough buffer.

For position management, control the initial position size at 10%, making it easier to gradually add positions later to lower the average cost. The previous trading logic is invalidated; this round is restarted based on new technical signals. Remember, leverage is a double-edged sword; setting proper stop-losses is more important than pursuing maximum gains.