Jane Street

Founded in 2000 by traders and technologists in New York, Jane Street has grown into a global proprietary trading and market-making firm. It combines quantitative research, trading, machine learning, and software engineering to price and trade financial products across global markets.

Jane Street provides liquidity to institutional clients while also operating a proprietary trading business. Its activities span ETFs, equities, bonds, options, and digital assets, with trading conducted across more than 200 venues in 45 countries.

The firm is especially strong in ETF liquidity provision and electronic trading. It prices and trades more than 10,000 ETFs globally, and reported trading more than $900 billion with fixed-income clients in 2025. Its careers site also highlights substantial in-house software development and quantitative work, making it particularly relevant for students interested in markets, mathematics, data, or technology.