Hudson River Trading (HRT) is a quantitative trading firm founded in 2002 by Harvard and MIT graduates, specializing in algorithmic market-making across multiple asset classes on electronic exchanges worldwide. The firm provides liquidity through automated trading strategies and operates a Single Dealer Platform and Client Market Making services. HRT employs over 1,000 people across 14 offices globally, including mathematicians, computer scientists, and engineers who develop trading algorithms using advanced mathematical techniques. The firm has recently expanded into venture investing, participating in funding rounds for technology startups. In 2025, HRT invested in UK AI chip startup OLIX's €270.5 million Series B round at a €2.8 billion valuation.

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