Radix Trading is a privately held proprietary trading firm headquartered in Chicago, with additional offices in New York and Amsterdam. The firm describes itself as a research firm powered by technology and monetized through trading, developing statistical and machine learning driven strategies that it executes on major electronic markets across North America, Europe and Asia. It is self-funded and states that it does not accept outside investment, trading its own capital rather than managing money for outside clients. Within the high frequency and quantitative trading category, Radix positions itself around research depth rather than pure speed, building automated research platforms and blending academics from top universities with technologists drawn from major engineering firms. The Amsterdam office, opened in August 2017, gave the firm a regulated European base from which to trade EU and UK markets; public compliance disclosures reference Pillar III and IFR/IFD requirements, indicating the European entity operates under EU investment firm prudential regulation. The firm is a member of the Futures Industry Association. Radix was founded in 2012 by Benjamin Blander and Michael Rauchman. Blander previously led the high frequency trading group at Citadel LLC, where he is credited with helping grow that unit's profit from roughly 75 million dollars in 2005 to 1.15 billion dollars in 2008; he holds a PhD, MS and BS in mathematics from the University of Chicago. Rauchman was previously chief technology officer, head of Americas equities and global head of FX at GETCO LLC, at the time one of the largest electronic market makers in US stocks. As of April 2026 the firm reported approximately 177 employees across its three offices. Radix drew public attention in March 2023 when the CFTC's lawsuit against Binance and Changpeng Zhao identified three unnamed VIP trading clients of the exchange; Radix confirmed to the Wall Street Journal that it was the party referred to as Trading Firm A, alongside Jane Street Capital and Tower Research Capital, who were named as the other two. Neither Radix nor the other firms were accused of wrongdoing in the action. Blander told the Journal that Radix had traded on Binance for several years through offshore affiliates and a prime brokerage arrangement, and that it believed its crypto market connectivity had been legally vetted beforehand; the CFTC's complaint stated Binance had instructed Radix to access the exchange via a VPN.
