Have a look at https://www.investopedia.com/articles/active-trading/020515/how-robinhood-makes-money.asp https://www.investopedia.com/articles/active-trading/02

Have a look at https://www.investopedia.com/articles/active-trading/020515/how-robinhood-makes-money.asp https://www.investopedia.com/articles/active-trading/020515/... My bet is that this is also why they abandoned their EU plans as most of these practices are illegal / more strictly regulated.