Recently, BTC has been pulling back after surging above 88,033. The 4-hour chart clearly shows this — a bearish candle completely engulfs the previous small bullish candle, indicating that the bulls' momentum for this rally is indeed waning.

From a technical perspective, the middle band of the Bollinger Bands cannot support the price anymore, acting like an invisible ceiling. The support level around 86,366 is a temporary support, but honestly, its strength is not very strong. The entire Bollinger Band is currently tightening and slightly sloping downward, indicating a short-term bearish trend.

Indicators are also signaling bearishness — the MACD is still below the zero line, with the green bars shrinking but not yet crossing over to form a golden cross, showing no signs of reversal. Trading volume has not kept pace; instead, it seems somewhat out of sync with the price movement. The RSI is also below the 50 mark, indicating limited room for a rebound.

Overall, BTC's recent rebound is likely coming to an end, and a correction is highly probable.

ETH's chart looks very similar to BTC — obvious resistance above and a stalled rebound.

Based on this analysis, consider short positions for BTC in the 88,000 to 88,500 range, with targets around 86,500; for ETH, short positions can be considered in the 2,960 to 2,980 range, with targets near 2,900.