Bitcoin rose 0.49% to $50,188.4 at 1004 GMT on Sunday, adding $245.24 to its previous close. The world’s biggest and best-known cryptocurrency is up 81% from this year’s low of $27,734 on Jan. 4. Ether, the coin linked to the ethereum blockchain network, rose 1.16% to $3,932.07 on Sunday, adding $44.97 to its previous close, Reuters reported.