Golden Finance reports that the cryptocurrency exchange Kraken has launched cryptocurrency derivatives trading services in its second largest market, the UK. This product is only available to 'professional clients' as defined by the UK Financial Conduct Authority (FCA). Kraken's head of derivatives, Alexia Theodorou, stated that the company has 'quietly' introduced this service in recent weeks, and said: 'As a new product, we are rolling it out gradually, ensuring that we first cover specific clients. Now, the service is open to 100% of clients who need to go through a specific derivatives onboarding process.'