Jane Street Capital
With offices in New York, London, Hong Kong, and Amsterdam, Jane Street is a trading firm that operates around the clock and around the globe, trading a wide range of financial products. On an average day, they trade over $21 billion in equities, bonds, and ETFs worldwide. They are also very active in the markets for options, futures, currencies, commodities, and fixed income. They are active participants on 200 trading venues in over 45 countries around the world, having traded over $10 trillion across all products in 2019.