BNB, from the 4-hour chart, shows a weak rebound below the MACD zero line, with all short-term moving averages trending downward, forming a "weak rebound - encountering resistance - sideways" bearish pattern. The current sideways movement is to digest the floating positions in the 875-880 range, with downward momentum building up. The lower support at 860 is the upper boundary of the Bollinger Bands' lower band, serving as a short-term downside target. A break below this level will test the core support at 864.44 on the lower band.