$8.6 billion trading app Robinhood is canceling its UK launch amid an explosion in day traders

· *Stock trading app Robinhood has indefinitely postponed its UK launch. *
· *The startup recently raised another $320 million at a valuation of $8.6 billion amid a boom in activity as millennials flock to trading during coronavirus. *
· *A spokesperson for the company said: "As a company, we are refocusing our efforts on...