Bitcoin and Ethereum moved sharply lower on Monday, extending losses in a coordinated sell-off that points to a broader risk-off reset across the crypto market rather than a token-specific shock.

Bitcoin fell from above the mid-$67,000 range to around $64,000, marking one of its steepest single-day declines in weeks. The drop unfolded quickly, with selling pressure accelerating after an early breakdown from intraday support, before prices stabilized at lower levels.

The absence of a clear, single catalyst suggests the move reflects macro-style deleveraging rather than reactionary trading to fresh headlines. 

Liquidity thinned rapidly as selling intensified, reinforcing the downside move once key technical levels gave way.