Bitcoin dipped 5.16% to $33 849.47 at 18:00 GMT on Saturday, losing $1 842.99 from its previous close.
Ether , the coin linked to the ethereum blockchain network, dropped 6.26% to $2 262.06 on Saturday, losing $151.11 from its previous close.
Bitcoin, the world’s biggest and best-known cryptocurrency, is down 47.8% from the year’s high of $64 895.22 on April 14.
It has been less volatile in the past week but losses this month have been heavy at 38%, driven by growing regulatory pressures on the sector.
It is trading at levels last seen in January and at roughly half its peak value.