Citadel LLC (formerly known as Citadel Investment Group, LLC) is a global financial institution based in Chicago, Illinois. Founded in 1990 by Kenneth C. Griffin, the firm today deploys capital across multiple asset classes and strategies.2 Current activities also include equity and options market-making

Citadel Asset Management manages $11bn in assets under management (AUM) and was one of the world's largest hedge fund managers

The firm manages separate client focused portfolios and hedge funds for its clients. It invests in the public equity, fixed income, and alternative investment markets across the globe. The firm makes its investments in the stocks of companies operating across diversified sectors. As part of its alternative investments, it invests in currency, commodities, and derivatives such as interest-rate swaps, futures, options, repurchase agreements, and reverse repurchase agreements. The firm makes its fixed income investments in government bonds and mortgage-backed securities. It employs a mix of strategies including credit arbitrage and structured credit strategies to make its investments. The firm employs a combination of quantitative and fundamental analysis with a bottom-up stock picking approach to create its investment portfolio. It conducts in-house research to make its investments. Citadel Investment Group, L.L.C was founded in 1990 and is based in Chicago, Illinois with additional offices in Boston, Massachusetts; New York, New York; San Francisco, California; London, United Kingdom; and Hong Kong, Hong Kong.