Nothing spectacular here, just putting this down for future reference.
It appears BNB may be repeating what it did before last Sept: after rising against BTC, it retraces heavily & then starts to trade within range. If this pattern is repeated, the range starts right after 7D & 30D SMA crosses.
The difference is the level of retracement, though since it rose 20x instead of 10x last time, perhaps a shallower retracement is tenable.
BNB doesn't seem to be turning bullish against BTC soon.