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48-year-old Citadel London trader who generated $2bn profit decides to take things easy

Reported by Efinancialcareers ·Efinancialcareers-canada
Sep 4, 2026· 3 min read
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Key Takeaways
  • • Chris Foster, 48-year-old star trader at Citadel's London office, is stepping down from his active trading role after nearly 20 years with the firm, though he will remain as an advisor to Sebastian Barrack, head of European natural gas trading.
  • • Foster generated $2 billion in profits for Citadel in 2022, primarily from natural gas trading following Russia's invasion of Ukraine, representing a significant portion of the firm's profitability during an exceptionally volatile commodity market.
  • • Following the $2bn profit year, Citadel partners' average compensation increased to $70 million annually, up substantially from the prior $21 million average, indicating Foster's outsized contribution to firm economics.
  • • Foster donated £25 million from his 2022 windfall to Mansfield College, Oxford, his alma mater, supporting widening access to elite education—a philanthropic commitment aligned with his background from a state school in Wigan.
  • • Foster's transition reflects the broader challenge facing commodity trading desks in maintaining profitability amid persistent market volatility, despite his exceptional track record since joining Citadel from Merrill Lynch in 2008.
Summary
Chris Foster, a 48-year-old trader at Citadel's London office, is stepping down from active trading operations, according to reporting from The Financial Times. Foster joined Citadel from Merrill Lynch in 2008 and became a partner at the London office in 2011 at age 33. His decision to scale back operations comes after an extraordinarily profitable 2022, when Foster and his natural gas trading team generated $2 billion in profits—a figure the firm's leadership has not publicly emphasized, though it represents a material driver of Citadel's overall profitability during that period.

The $2 billion windfall occurred amid extreme volatility in European natural gas markets following Russia's invasion of Ukraine in February 2022. This exceptional performance had measurable impact on firm economics: Citadel partners' average compensation increased to $70 million annually in the year following the $2bn profit, substantially above the prior average of $21 million. Foster, who would have been 44 at the time of the 2022 profits, benefited significantly from this structure, enabling substantial philanthropic commitments.

Foster donated £25 million of his 2022 compensation to Mansfield College, Oxford, where he earned a first-class mathematics degree after being rejected by the more prestigious St. John's College. Foster's background from a state school in Wigan shaped his commitment to access in elite education; he has publicly stated that achieving a first-class maths degree from Oxford proved he "could do anything." His donation reflects a deliberate effort to support widening participation at the institution.

Under his boss Sebastian Barrack, Foster will transition to an advisory role rather than full retirement, maintaining a connection to the natural gas trading operations he built. The move underscores the operational challenges facing commodity trading desks post-2022, as exceptional volatility-driven profits normalize and market conditions stabilize. Barrack's public statement emphasized Foster's "contributions" and "leadership" over a nearly 20-year tenure, though the magnitude of the $2 billion profit generation represents the most concrete measure of Foster's impact on Citadel's institutional performance.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Efinancialcareers 48-year-old Citadel London trader who generated $2bn profit decides to take things easy Efinancialcareers-canada 48-year-old Citadel London trader who generated $2bn profit decides to take things easy - eFinancialCareers Canada