Based on the four-hour performance of BTC, the overall movement revolves around the middle band of the Bollinger Bands. The Bollinger Bands indicator shows the three lines gradually narrowing. Regarding the auxiliary indicators, the KDJ three-line death cross occurs at a high level, and the MACD bullish momentum remains in a decreasing state. On the one-hour timeframe, the price has currently broken below the middle band of the Bollinger Bands, and the current chart can be viewed as a bearish flag pattern. Although there was a slight rebound in the early morning, it was a volume-less bounce and did not establish a firm footing. For now, the strategy is to short on rallies.