Stuart Riley departs Tudor after 16 months for ARP Dubai

Stuart Riley will join ARP Global Capital in Dubai as senior partner and deputy chief investment officer after leaving Tudor Investment Corporation following a 16-month tenure.

Riley joined Tudor in February 2025 as a portfolio manager and, according to regulatory filings, ceased to be a partner earlier this month. Tudor confirmed he is no longer employed by the firm and did not provide further details.

He will not be joining Citadel Securities, contrary to earlier industry speculation.

At ARP, Riley will work under Yusuf Alireza, a former Goldman Sachs executive who served as co-head of the firm’s Asia-Pacific operations. ARP has been hiring senior staff from banks and trading firms as it expands its macro and markets-focused investment team in Dubai.

Riley spent many years at Goldman Sachs, where he led rates trading in London before leaving the bank in 2015. He later worked at Rokos Capital Management prior to joining Tudor.

Tudor did not elaborate on reasons for his departure. ARP did not immediately provide a comment. Riley’s appointment is one of several senior hires as the firm builds its trading bench in the Middle East.