Cryptocurrency prices saw rises over 400% and higher in the first In the first three quarters of 2017, but are extremely volatile. Some prominent executives have declared Bitcoin and other crypto currencies a fraud, yet the CFTC has approved a swap execution facility (SEF) and derivatives clearing organization (DCO) for bitcoin swaps and options. Central banks across the globe are exploring issuing their own crypto or digital currencies, while many are banning initial coin offerings by companies.