Quant Companies in Chicago 🇺🇸

Akuna Capital is a proprietary trading firm specializing in options market making, providing competitive two-sided quotes across global derivatives markets. Founded in 2011 and headquartered in Chicago, the firm operates offices in Sydney, London, Shanghai, and Singapore. Akuna designs and implements its own low-latency trading technologies, mathematical models, and automated trading strategies, giving it a fully integrated edge across technology and execution. The firm provides liquidity as an options market maker, simultaneously quoting bids and offers to ensure efficient price discovery. Akuna's four core departments — Technology, Trading, Quant, and Operations — collaborate closely to drive data-driven decision-making and continuous innovation. Known for its flat structure and emphasis on individual ownership, Akuna attracts top quantitative and engineering talent. The firm competes in global financial markets with a focus on advanced modeling, automation, and cutting-edge infrastructure.

Citadel Securities is a leading global market maker and liquidity provider operating across equities, options, fixed income, and foreign exchange markets. As one of the largest market makers in the world, the firm executes trades for retail and institutional clients across more than 35 countries, providing continuous two-sided liquidity that improves price discovery and lowers transaction costs. Citadel Securities serves as a Designated Market Maker on the New York Stock Exchange and handles a significant share of US equity volume daily. The firm leverages proprietary quantitative research, advanced technology infrastructure, and high-frequency trading systems to deliver competitive execution quality. Citadel Securities employs quantitative researchers, engineers, and traders who build and deploy sophisticated algorithms across asset classes. The firm is known for its rigorous, data-driven culture and investment in cutting-edge low-latency technology, making it a destination for top talent in quantitative finance and software engineering.

DRW is a diversified proprietary trading firm headquartered in Chicago, deploying sophisticated quantitative strategies and technology across traditional and cutting-edge markets. Founded in 1992 by Don Wilson, DRW provides liquidity across a broad range of asset classes including equities, fixed income, derivatives, commodities, FX, and cryptocurrency. The firm operates Cumberland, one of the earliest and most established crypto trading desks, active since 2014. DRW also manages DRW Venture Capital for fintech investments, an NX network infrastructure division, and Convexity, a real estate investment arm. With over 30 years of market-making experience, DRW employs quantitative traders, software engineers, and researchers who leverage low-latency technology and data-driven models to improve market efficiency, transparency, and fairness across global exchanges.

Eagle Seven is a privately held proprietary trading firm specializing in providing liquidity to global financial markets. The firm executes diverse trading strategies across listed derivatives and securities markets on numerous global exchanges, using its own capital without reliance on third-party investors. Eagle Seven combines proprietary technology with robust risk management and professional traders to deploy disciplined, adaptable strategies across multiple asset classes including energy futures, swaps, and algorithmic trading. The firm's proprietary trading platform is engineered for speed, accuracy, and innovation, supporting sophisticated algorithmic strategies and outright trading. Operating across US and international markets, Eagle Seven maintains a flat organizational structure that fosters collaboration and entrepreneurial thinking. With offices including a presence in Amsterdam, the firm has global reach and a proven track record of long-term stability in competitive trading environments.

Flow Traders is a global technology-driven liquidity provider and high-frequency trading market maker specializing in exchange-traded products (ETPs), including ETFs, across equity, fixed income, FX, commodities, and cryptocurrency markets. Founded in Amsterdam in 2004, the firm operates from offices across Europe, the Americas, and Asia, providing continuous two-sided quotes on thousands of financial instruments on exchanges and multilateral trading facilities worldwide. Flow Traders is publicly listed on Euronext Amsterdam and is recognized as one of the world's largest ETF market makers by trading volume. The firm leverages proprietary technology, quantitative research, and algorithmic trading infrastructure to ensure tight spreads and deep liquidity. Flow Traders also operates an institutional trading desk and a digital assets division, reflecting its commitment to expanding into emerging asset classes. Its Strategic Capital arm makes investments in fintech and financial services companies.

Gelber Group is a Chicago-based global proprietary trading firm founded in 1982, trading across major exchanges in the United States and worldwide. The firm deploys strategies spanning the full spectrum of trading, including high-frequency, systematic, and discretionary approaches across foreign exchange, fixed income, equities, and commodities. Gelber operates through regulated entities including a FINRA-registered broker-dealer, a self-clearing CME member firm, and an AFM-licensed MiFID II investment firm, enabling access to all major global financial markets. With over 200 employees and offices in Chicago, White Plains, and Amsterdam, the firm combines entrepreneurial thinking with disciplined execution and deep technological investment. Privately funded for more than four decades, Gelber has built a reputation for innovation, longevity, and consistent performance. The firm emphasizes proprietary technology development as a core competitive advantage, supporting traders and researchers across a diverse range of asset classes and quantitative strategies.

Headlands Technologies is a quantitative proprietary trading firm specializing in automated electronic trading strategies across diverse global financial markets. Founded in 2010 and privately funded, the firm designs and implements cutting-edge algorithmic trading systems that operate 24 hours a day across exchanges worldwide. Headlands combines advanced quantitative research with high-performance software engineering, developing low-latency, distributed trading infrastructure built primarily in C++ on Linux systems. The firm employs quantitative researchers and software developers who collaborate to build, optimize, and maintain fully automated trading algorithms. With offices in Chicago, New York, Amsterdam, London, and Singapore, Headlands operates a truly global trading platform spanning multiple asset classes and venues. The firm is distinguished by its flat organizational structure, rigorous engineering culture, and emphasis on novel quantitative research. Headlands does not accept outside investors, operating entirely on proprietary capital.

Hudson River Trading (HRT) is a leading algorithmic trading firm and liquidity provider specializing in high-frequency trading across global electronic markets. Founded by mathematicians, computer scientists, statisticians, physicists, and engineers, HRT develops sophisticated automated trading algorithms that provide competitive pricing and deep liquidity to clients across equities, fixed income, derivatives, ETFs, FX, and commodities. The firm operates across nearly all major electronic exchanges worldwide, spanning 14 offices in six countries. HRT is recognized for its strong engineering culture, where coders lead and build the firm's proprietary trading infrastructure. The company invests heavily in low-latency systems, FPGA technology, and cutting-edge research to maintain competitive advantage in electronic market making. HRT's technology-first approach distinguishes it as one of the most sophisticated quantitative trading firms in the industry.

IMC Trading is a global proprietary trading firm and high-frequency market maker specializing in quantitative research, algorithmic trading, and liquidity provision across major asset classes. Founded in 1989, IMC operates across 10 offices worldwide, trading on more than 120 venues in equities, listed options, ETFs, futures, FX, and crypto. IMC is a top-3 liquidity provider by volume in global listed options and serves as Lead Market Maker in over 150 US ETFs. The firm combines cutting-edge technology infrastructure — including thousands of servers across 9 countries — with petabytes of daily data processing to power its trading strategies. IMC offers institutional clients direct liquidity access through options wholesaling, institutional sales desks, ETF market making, and crypto solutions covering spot, perpetuals, futures, and options. With over 1,900 employees from 70+ nationalities, IMC competes at the frontier of quantitative finance through cross-functional teams in quant research, software engineering, and trading.

Jane Street is a global proprietary trading firm and liquidity provider specializing in quantitative trading across equities, fixed income, derivatives, ETFs, FX, and commodities. Founded in 2000 and headquartered in New York, the firm trades on more than 200 venues across 45 countries, making it one of the world's largest ETF market makers. Jane Street combines deep mathematical research, advanced technology, and systematic trading strategies to navigate complex markets. The firm is a leading user of functional programming languages, particularly OCaml, and invests heavily in machine learning and FPGA-based hardware acceleration. With over 3,000 employees across five global offices, Jane Street operates both a proprietary trading business and a client-facing offering providing institutional liquidity and execution services. Its differentiation lies in rigorous quantitative research, a collaborative culture, and technology-driven edge-case risk management.

Jump Trading is a global proprietary trading firm specializing in quantitative research, algorithmic trading, and high-frequency trading across every major asset class and time horizon. Founded in 1999 and headquartered in Chicago, the firm operates across equities, fixed income, derivatives, FX, commodities, and cryptocurrency markets. Jump Trading develops proprietary trading strategies grounded in rigorous research, advanced machine learning, and custom-built infrastructure spanning from raw silicon and FPGA hardware to order execution systems. With over 1,000 employees across 13 countries and offices in major financial centers including New York, London, Amsterdam, Singapore, Hong Kong, and Shanghai, Jump Trading competes through deep technical expertise and vertically integrated systems. The firm recruits traders, software engineers, and quantitative researchers to solve complex market microstructure and infrastructure problems. Jump Crypto extends the firm's capabilities into digital asset markets.

Optiver is a global proprietary trading firm and leading market maker founded in Amsterdam in 1986. Specializing in options, futures, equities, fixed income, FX, and commodities, Optiver trades thousands of financial instruments on major exchanges worldwide. The firm operates as a principal, deploying its own capital to provide continuous two-sided liquidity across equity, derivatives, and commodity markets, improving price discovery and market stability. Powered entirely by in-house technology, Optiver's trading systems operate at nanosecond speed, supported by quantitative research, advanced pricing models, and sophisticated risk management infrastructure. With close to 2,000 employees across offices in Amsterdam, Chicago, Sydney, Singapore, Hong Kong, Shanghai, London, New York, and other global hubs, Optiver serves as a stabilizing force during periods of market volatility. The firm is widely recognized as one of the oldest and most respected market making organizations in the world.

Radix Trading is a proprietary trading and quantitative research firm that uses statistical research, machine learning, and automated trading strategies to compete on major electronic markets across North America, Europe, and Asia. Founded by industry veterans who previously led some of the most profitable trading teams globally, Radix blends interdisciplinary academics from top universities with experienced researchers and senior technologists, including supercomputer specialists and Silicon Valley engineers. The firm operates a cutting-edge proprietary technology platform enabling rapid iteration from research idea to live execution. Unlike traditional high-frequency trading firms focused purely on speed, Radix differentiates itself through sophisticated statistical methodologies and collaborative innovation. Privately funded and headquartered in Chicago with offices in New York and Amsterdam, Radix participates across a broad range of electronic markets and asset classes. The firm recruits PhDs, postdocs, and faculty from top universities alongside experienced quant researchers and engineers.

Tower Research Capital is a leading proprietary trading firm and high-frequency trading market maker operating across global financial markets. Founded in 1998, Tower deploys sophisticated quantitative trading strategies across equities, fixed income, derivatives, FX, commodities, and cryptocurrencies, trading on any time horizon and in any asset class. The firm is organized around autonomous, team-based trading groups sharing a unified high-performance technology infrastructure and research platform. Tower provides liquidity provision services to global markets and also operates a ventures arm investing in emerging financial technology. With offices spanning New York, Amsterdam, Singapore, Gurgaon, Chicago, and other global financial centers, Tower attracts elite quantitative traders, systematic portfolio managers, and software engineers. Its competitive differentiation lies in combining cutting-edge low-latency engineering with an entrepreneurial, results-oriented culture that enables independent trading teams to thrive within a shared institutional framework.

Virtu Financial is a leading global high-frequency trading firm and market maker that leverages cutting-edge technology to deliver liquidity across over 25,000 securities at more than 235 venues in 37 countries worldwide. Specializing in execution services, liquidity sourcing, trading analytics, and workflow technology, Virtu provides institutional clients with broker-neutral, multi-dealer platforms and data-as-a-service solutions via its Open Technology Platform. The firm combines deep market structure expertise with proprietary algorithmic trading infrastructure to generate competitive bids and offers across equities, fixed income, ETFs, FX, commodities, and derivatives. Virtu also offers transaction cost analysis, execution management systems, and connectivity products through its ITG acquisition. Publicly traded on Nasdaq under the ticker VIRT, Virtu is recognized for transparency, innovation, and consistent high-quality trade execution in global capital markets.