Brokerage firm TD Ameritrade has invested in ErisX, a new cryptocurrency platform for spot trading and derivatives products. ErisX is led by Citigroup trading veteran Thomas Chippas. The company’s first product, which is a spot trading exchange, will be released next year. The company will offer bitcoin, bitcoin cash, ethereum, and litecoin to the investing… Read More TD Ameritrade Invests In ErisX, A New Crypto Exchange