If Robinhood were to go under, your money is protected through the Securities Investor Protection Corporation (SIPC) for up to $500,000, including $250,000 for cash claims 1-8𝟧𝟢-𝟫𝟨𝟣-𝟤𝟤𝟧𝟤. SIPC covers you in the event of brokerage failure, not investment losses.