Robinhood said the new cash injection would go towards “improving core product and customer experience.”: The quickly growing stock-trading app, Robinhood, has closed a new round of capital. Today, it announced a $200 million Series G funding led by D1 Capital Partners and putting its valuation at $11.2 billion. Robinhood said the new cash injection would go towards “improving our core product and customer experience.” It also intends to leverage the add-on to accelerate the build-out of operations, including hiring more employees in its offices.