The largest digital asset sank 5.7% in the US on Saturday and continued to drop in Asia on Sunday to as low as $62,112, down a further 3.6% and its weakest since July 14. By Matthew Brockett Cryptocurrencies tumbled over the weekend, with Bitcoin slumping to a four-month low as leveraged long positions were liquidated. Second-biggest token Ether, which slumped 8% in the US session, fell another 3.