Warsh was confirmed Wednesday in a largely party-line vote.
Hunter Kahn donated Nintendo Switch consoles and games to Children's Minnesota Hospital after cashing out nearly $30,000 in GameStop stock.
The lawsuit, filed in the Southern District of New York, claims that Robinhood's actions rigged the market against its customers.
The S&P 500 slumped 1.7% as soon as trading began, only to churn through another turbulent session.
Investors have waited a long time for San Francisco-based AirBnb to announce its plans for an initial, public offering.
TERRIBLE: The stock market ended a miserable year on a positive note but still closed out 2018 with its worst showing in a decade.