In October, the Robinhood mobile app launched in the US states of Rhode Island, Tennessee and Arkansas.
In September, residents of the states of Alaska and Oklahoma also gained access to trade on the platform.
Earlier, the head of the startup, Beich Bhatt, said that Robinhood is planning to go public in the medium or long term.
At the time of adding support for Ethereum Classic (ETC), the application was already available in 19 states.
With Robinhood, you can learn to invest in the stock market as you build out your portfolio. The service is free of charge. It is available for US residents only.