On Monday, Bitcoin's volatility was limited, with resistance encountered during the rebound, and the short position above 108,000 has been profitable in the short term. Currently, both long and short positions have poor continuity and weakened momentum, so one can short at highs. The small time frame is experiencing a downward pullback, with the 4-hour K-line forming consecutive bearish candles under pressure from the upper track. If it breaks below the middle track, bearish momentum may deepen. Ethereum surged and then retreated, with a profitable short position around 2,500 during the day session. The 4-hour K-line shows consecutive bearish indicators pointing downwards, with volume shrinking or fluctuating back, indicating a short-term bearish trend. Bitcoin shorts from early morning and during the day can take some profits, with the remaining position watching for support around 106,000, and considering a long position near last night's low around 102,500; for Ethereum, reduce shorts at 2,500 and look for a drop towards 2,400, while bullish positions in the range of 2,550-2,580 target 2,680.