Citadel LLC
Robinhood Markets
Melvin Capital
Merrill (company)
Bear Stearns
Goldman Sachs
Two Sigma
Morgan Stanley
Balyasny Asset Management
Hudson River Trading
Citigroup
r/wallstreetbets
E-Trade
Bank of America
JPMorgan Chase
American capital markets firm
citadelsecurities.com
Citadel Securities LLC is an American market making firm headquartered in Miami. It is one of the largest market makers in the world, and is active in more than 50 countries. Wikipedia