The beauty of ACAT transfers is that they allow you to transfer investments between brokers or firms as is. This means that you don’t need to sell your investments and then transfer cash. Providing you have whole stocks, you will be able to transfer your entire portfolio to Public.com without needing to sell anything. However, if you have fractional shares, these may not be transferred. Robinhood will automatically liquidate any fractional shares and the cash proceeds will be transferred across to Public.com.