The world's largest cryptocurrency fell as much as 7.8% to $20,079.72 , its lowest since December 2020. It has lost about 33% against the U.S. dollar since Friday, dropping more than 50% since the beginning of the year. It has slumped about 70% from its record high of $69,000 in November.
Bitcoin was last down 1.31% at $21,669.37.
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