The Globe and Mail Radhika Anilkumar and Thyagaraju Adinarayan Reuters Bookmark Please log in to listen to this story. Also available in French and Mandarin. Log In Create Free Account Getting audio file ... This translation has been automatically generated and has not been verified for accuracy. Full Disclaimer Dado Ruvic/Reuters Bitcoin , the world’s biggest cryptocurrency, fell as much as 14 per cent to US$51,541 on Sunday, reversing most of the big gains it made over the past week. Bitcoin was last trading down 10 per cent at US$53,991 as of 1320 GMT, a whopping US$12,000 below record highs set on Wednesday. Smaller rival Ether , the coin linked to the ethereum blockchain network, dropped 10 per cent to US$2,101.