Dogecoin leaps and bitcoin retreats after Musk tweets Updated / Friday, 14 May 2021 14:09 Bitcoin is down about 13% this week, while Dogecoin has soared 25% Bitcoin was heading today for its worst week since February, while dogecoin leapt by a quarter, as the latest tweets on cryptocurrencies from Tesla boss Elon Musk sent the digital coins on a wild ride. Bitcoin is down about 13% this week, and was last up 1.6% at $50,503. It has slumped over a fifth from its record of just under $65,000 hit last month. Cryptocurrency markets have gyrated to Musk tweets for months, with his comments on dogecoin - a token started as a joke that has scant practical use - fuelling a hundred-fold rally this year.