Citadel and Citadel Securities are two separate and distinct financial firms, each focused on a different aspect of today’s markets. Citadel is a multi-strategy alternative investment manager, striving to generate superior long-term returns for the world’s preeminent public and private institutions.

Jump Trading is a proprietary trading firm that combines sophisticated quantitative research, cutting-edge technology, and an entrepreneurial culture to trade the global financial markets. Founded in 1999, Jump has over 1,800 employees across offices in Chicago, New York, London, Paris, Singapore, Shanghai, Sydney, Hong Kong, and more.

Susquehanna is a global leader in quantitative research and trading, driven by cutting-edge machine learning and deep learning techniques. We build high-performance models to forecast price dynamics, liquidity, and market impact. Our integrated teams of researchers, engineers, and traders solve complex real-world problems, supported by rigorous training and a culture of continuous innovation.

The D. E. Shaw group is a global investment and technology development firm founded in 1988 with more than 2,500 people around the world. Members of our technical staff collaborate on challenging problems that directly impact the firm’s continued success, utilizing their analytical, mathematical, and software design skills as well as some of the most advanced computing resources in the world.