Top 10 US Algorithmic Trading Firms

Citadel Securities generated $26 billion in revenue in 2022 and executes approximately 30% of all US equity trading volume, making it the dominant US market maker. Founded by Ken Griffin in 2002, it provides liquidity across stocks, options, ETFs, and fixed income. Citadel Securities handles retail orders for major brokerages including Robinhood and Schwab.

Citadel Securities

Two Sigma manages approximately $60 billion in AUM with 2,700 employees, nearly all of whom are engineers, mathematicians, or data scientists. Founded in 2001 by David Siegel and John Overdeck, it applies machine learning and distributed computing to find patterns in vast datasets. Two Sigma has expanded into venture capital and private equity alongside its core hedge fund business.

Two Sigma

D.E. Shaw was founded in 1988 by computer scientist David Shaw and manages over $60 billion across quantitative and discretionary strategies. It was one of the first firms to use computational algorithms in trading and employed Amazon founder Jeff Bezos before he launched Amazon in 1994. The firm's flagship Composite Fund has compounded at over 20% annually since inception.

D.E. Shaw

Virtu Financial generated $2.9 billion in revenue in 2022 and is one of the world's largest electronic market makers operating across 235 venues in 50 countries. Founded in 2008, Virtu famously disclosed only one losing trading day in over five years prior to its 2015 IPO. It processes billions of transactions daily using ultra-low-latency infrastructure.

Virtu Financial

Jump Trading is a Chicago-based proprietary trading firm founded in 1999 that operates across equities, futures, options, fixed income, and cryptocurrencies with a strong focus on high-frequency trading. The firm employs over 1,000 researchers and engineers but maintains a low public profile as a private partnership. Jump Crypto became one of the most active institutional participants in digital asset markets.

Jump Trading

SIG was founded in 1987 by a group of professional poker players in Philadelphia and has grown into one of the largest global options market makers and quantitative trading firms. The firm executes millions of options contracts daily and trains its traders extensively in game theory and probability. SIG also runs a venture capital arm that was an early backer of ByteDance, parent of TikTok.

Susquehanna International Group (SIG)

Hudson River Trading was founded in 2002 and has become one of the top three US equity market makers alongside Citadel Securities and Virtu. The New York-based firm employs over 1,000 people focused entirely on algorithmic research and engineering. HRT reportedly trades in over 200 financial markets globally and is known for investing heavily in custom hardware and co-location infrastructure.

Hudson River Trading (HRT)

Jane Street generated over $20 billion in revenue in 2023, making it arguably the most profitable trading firm per employee in the world. Founded in 2000, the New York-based firm dominates ETF arbitrage, fixed income, and options markets globally. Jane Street is also one of the largest proprietary crypto trading firms and trades roughly $17 trillion in securities annually.

Jane Street

Tower Research Capital was founded in 1998 by former Merrill Lynch trader Mark Gorton and focuses exclusively on high-frequency trading across global equity, futures, and FX markets. The firm operates from offices in New York, London, and Singapore, maintaining co-location at major exchanges worldwide. Tower is known for its ultra-low-latency microwave and fiber-optic data networks spanning the US and Europe.

Tower Research Capital

Citadel Securities generated $26 billion in revenue in 2022 and executes approximately 30% of all US equity trading volume, making it the dominant US market maker. Founded by Ken Griffin in 2002, it provides liquidity across stocks, options, ETFs, and fixed income. Citadel Securities handles retail orders for major brokerages including Robinhood and Schwab.

Citadel Securities

Two Sigma manages approximately $60 billion in AUM with 2,700 employees, nearly all of whom are engineers, mathematicians, or data scientists. Founded in 2001 by David Siegel and John Overdeck, it applies machine learning and distributed computing to find patterns in vast datasets. Two Sigma has expanded into venture capital and private equity alongside its core hedge fund business.

Two Sigma

D.E. Shaw was founded in 1988 by computer scientist David Shaw and manages over $60 billion across quantitative and discretionary strategies. It was one of the first firms to use computational algorithms in trading and employed Amazon founder Jeff Bezos before he launched Amazon in 1994. The firm's flagship Composite Fund has compounded at over 20% annually since inception.

D.E. Shaw

Virtu Financial generated $2.9 billion in revenue in 2022 and is one of the world's largest electronic market makers operating across 235 venues in 50 countries. Founded in 2008, Virtu famously disclosed only one losing trading day in over five years prior to its 2015 IPO. It processes billions of transactions daily using ultra-low-latency infrastructure.

Virtu Financial

Jump Trading is a Chicago-based proprietary trading firm founded in 1999 that operates across equities, futures, options, fixed income, and cryptocurrencies with a strong focus on high-frequency trading. The firm employs over 1,000 researchers and engineers but maintains a low public profile as a private partnership. Jump Crypto became one of the most active institutional participants in digital asset markets.

Jump Trading

SIG was founded in 1987 by a group of professional poker players in Philadelphia and has grown into one of the largest global options market makers and quantitative trading firms. The firm executes millions of options contracts daily and trains its traders extensively in game theory and probability. SIG also runs a venture capital arm that was an early backer of ByteDance, parent of TikTok.

Susquehanna International Group (SIG)

Hudson River Trading was founded in 2002 and has become one of the top three US equity market makers alongside Citadel Securities and Virtu. The New York-based firm employs over 1,000 people focused entirely on algorithmic research and engineering. HRT reportedly trades in over 200 financial markets globally and is known for investing heavily in custom hardware and co-location infrastructure.

Hudson River Trading (HRT)

Jane Street generated over $20 billion in revenue in 2023, making it arguably the most profitable trading firm per employee in the world. Founded in 2000, the New York-based firm dominates ETF arbitrage, fixed income, and options markets globally. Jane Street is also one of the largest proprietary crypto trading firms and trades roughly $17 trillion in securities annually.

Jane Street

Tower Research Capital was founded in 1998 by former Merrill Lynch trader Mark Gorton and focuses exclusively on high-frequency trading across global equity, futures, and FX markets. The firm operates from offices in New York, London, and Singapore, maintaining co-location at major exchanges worldwide. Tower is known for its ultra-low-latency microwave and fiber-optic data networks spanning the US and Europe.

Tower Research Capital