Today's BNB trend key looks at the 646 level. If it stabilizes at this position on the 4-hour timeframe, a rebound may begin. Pay attention to resistance levels at 650.9, 655.3, and 659.3 above; if the rebound cannot hold above 646, then the 1-2 hour level rebound will be weak and will continue to retrace. Support levels to note below are 642, 637, and 633.