Midnight cryptocurrency market sees a strong reversal: Ethereum completes a V-shaped reversal, rebounding nearly 250 points from a low of $1979, reaching a high of $2221 before maintaining high-level fluctuations, with the daily line closing with an engulfing bullish candle. Hourly level: Continuous upward movement shows sufficient bullish strength, but the subsequent alternation of bullish and bearish candles indicates that the short term may enter a fluctuating downward channel. Trading suggestion: Given the market's extreme volatility characteristics, it is recommended to adopt a high short and low long swing strategy, with Ethereum referring to a long position around 2140-2160, targeting near 2250.