Galaxy Digital shares jumped about 10% in early trading Monday after the digital assets investment firm led by CEO Mike Novogratz unveiled a Robinhood-like trading platform, GalaxyOne.The platform and mobile application, launched Monday, hosts commission-free buying and selling of more than 2,000 stocks and exchange-traded funds in addition to cryptocurrencies such as bitcoin and ether, Galaxy Digital said in a statement.GalaxyOne also offers several yield-bearing accounts, including a 4% annual percentage ...