Towards the end of 2017, the idea of using Bitcoin as collateral to borrow US Dollars gained some traction. These individuals may want to retain their Bitcoin holdings and therefore they can use the Bitcoin as collateral to borrow US Dollars and avoid selling Bitcoin. Unchained CapitalUnchained Capital is another company which offers US Dollar loans based on Bitcoin collateral. The company was founded in 2016 and exclusively provides Bitcoin related services, such as facilitating Bitcoin purchases and storing Bitcoin in a multi-signature wallet on behalf of their customers. The company also provides US Dollar loans with Bitcoin as collateral.