Today's overall strategy reference:

Major global markets are closed for Christmas, liquidity is low, and a narrow range fluctuation is highly likely. Focus on high selling and low buying within the 86,500-88,500 range, strictly control positions + tight stop-loss, avoid chasing highs and bottom fishing.

Bitcoin: Around 88,500-90,000 can be considered, with a target towards 86,500-86,000.

Altcoin: Around 2,970-3,000 can be considered, with a target towards 2,900-2,850.