December 31st, trading remains light, and the oscillation pattern awaits a trend decision

Bitcoin/Ethereum yesterday, short positions only declined to around 87,800 and 2,940 in the early morning before rebounding again, showing a sideways trend. Market activity is subdued, affected by low liquidity at year-end and institutional cautiousness, so the short-term trend remains uncertain. The daily Bollinger Bands continue to flatten and show a narrowing pattern, indicating a tightening price range and an imminent direction choice. The four-hour short-term moving averages are intertwined, reflecting a temporary balance between bulls and bears, with the market in a consolidation phase.

Intra-day support for Bitcoin is focused around the 87,000 level, with strong support at 86,500; resistance levels to watch are at 89,500, with the 90,500 level forming a key psychological barrier. Ethereum's movement is highly synchronized with Bitcoin; after rebounding to around 3,010 yesterday, it oscillated back and is currently hovering between 2,900 and 3,000, with trading volume continuing to decrease. Short-term resistance is concentrated around 3,000 and 3,060, while support levels can be observed at 2,900 and 2,860.

Trading suggestions: Short near 88,800-89,300 for Bitcoin, targeting around 87,000; short near 2,980-3,000 for Ethereum, targeting around 2,900.