Robinhood launches cryptocurrency trading service to eligible customers in the UK, where users can buy and sell over 50 digital assets within the app through its $200 million acquisition of Bitstamp. This service is integrated into existing stock, options, and futures products, exempting trading fees, account maintenance fees, and custody fees upon launch. UK clients are required to pay a 0.1% foreign exchange fee, with some weekend exchange fees rising to 0.3%.