Ethereum 12.20 09:13 December 20 Review: Yesterday, Ethereum oscillated from 2799 up to 3017, then traded within a small range of 2970-2999. The short-term fluctuation was 180-220 points, with a daily range of 218 points. In the short term, there are signs of oscillating upward. Technical analysis from the hourly chart shows the Bollinger Bands' upper band descending, the middle band flat, and the lower band ascending, forming a converging pattern. The three lines correspond to prices: 2994-2965-2936. Currently, the MA5 in the medium-short-term moving averages is declining, M10 is flat, and M30 is rising. Trading volume has decreased. The MACD indicator is currently above the zero line with the fast line trending downward, the slow line flat, indicating increasing bearish momentum. The RSI indicator on the hourly chart is in the normal zone with both lines trending downward. From the 4-hour chart, the Bollinger Bands' upper band is rising, the middle band rising, and the lower band falling, with the three lines at: 3036-2907-2778. Currently, the MA5 and M10 in the medium-short-term moving averages are rising, M30 is falling. Trading volume has decreased. The MACD indicator is below the zero line with both lines rising, indicating increasing bullish momentum. The RSI indicator on the 4-hour chart is in the oversold zone with both lines crossing and flattening. Conclusion: Short-term range consolidation leans towards an upward correction. Range: 2970-2999. Low buy strategy: buy on dips as long as it does not break below 2930, establish long positions; if it breaks below, establish at 2880; stop loss at 2780. First take profit: 2968. Second take profit: 3029. High sell strategy: if it does not break above and stabilizes above 3030, establish short positions; add at 3084; stop loss at 3158. First take profit: 3000. Second take profit: 2950.