Bitcoin has experienced a significant decline, hitting a one-month low of approximately $64,237 on June 18. This drop comes after multiple attempts to breach the $70,000 mark and a brief rebound past $67,000. The decline is part of a broader cryptocurrency market sell-off, which has triggered a $455 million liquidation in altcoins. The total market cap has fallen by 2% to $2.33 trillion, with a 60% surge in trading volume. Despite the sell-off, Bitcoin's volatility has reached record lows, indicating a period of market consolidation.