Risk appetite appears to be back. Investors started the week by throwing $865 million at Bitcoin and Ethereum exchange-traded funds in the US. After weeks of lacklustre flows,$697 million hit the Bitcoin funds while $168 million was pumped into their Ethereum counterparts, according to Farside Investors data. This came after Friday, the first trading day of the year, when investors put over$471 million into the US Bitcoin vehicle and $174.5 million into the US Ethereum vehicle, respectively. That br ...