Bitcoin, Ethereum, XRP, and BNB all experienced a general decline on October 30th, and are currently hovering near critical support levels. Bitcoin fell to approximately $76,650, testing its 200-day moving average; Ethereum dropped to around $2,222.59, needing to reclaim $2,300 to alleviate pressure; XRP declined to about $1.2352, breaking below the key support of $1.30; and BNB fell to approximately $696.43, failing to sustain a rebound above the $750 resistance level.