https://www.reuters.com/article/us-retail-trading-robinhood-cryptocurren/robinhood-added-6-million-crypto-users-in-last-two-months-idUSKBN2AP2WY >Online brokerage Robinhood on Thursday said 6 million new users signed up for its cryptocurrency services in the first two months of 2021 amid higher retail trading volumes and sharp rises in the prices of cryptocurrencies like Bitcoin and Dogecoin.