That’s quite a big question as regulation varies considerably across all countries. Dedicated regulation around cryptocurrency based business, such as crypto trading have been seen in countries like: Germany, Gibraltar, Malta, Switzerland, Delaware and other US states such as Wyoming. There’s also been a push for regulation in places such as Thailand and Vietnam where cryptocurrency is a popular patent method especially for those who don’t have bank accounts. Such regulatory setups are usually applicable to crypto exchanges, ICOs, brokers, wallet providers, advisers, and asset managers. Most countries have recognised crypto trading, but have not drafted new laws around it, rather they have opted to adhere crypto trading to their national securities and tradings laws.