Key Takeaways
- • Ilex Capital, founded by former Citadel traders, has grown to $7 billion in assets under management with headcount exceeding 40 and a new Kensington office, signaling aggressive expansion in the London hedge fund market.
- • The fund hired James Osoi as a quant researcher this month; Osoi spent over five years at Balyasny in quantamental research roles across London and Singapore, and most recently worked at private equity firm Orbis Capital Management.
- • Ilex compensates talent competitively at approximately $997,000 average salary across 23 employees in its most recent fiscal year (ending March 2025), with the top earner receiving £80 million.
- • Paul Ward, head of quantitative investment solutions from UBS wealth management, joined Ilex in January 2025, indicating the fund's strategic focus on building quantitative and data-driven research capabilities.
- • The hedge fund's rapid scaling—particularly its shift toward quant hiring—reflects broader competitive pressures in London's hedge fund ecosystem, where specialized talent acquisition has become critical to fund differentiation.
Summary
Ilex Capital, a London-based hedge fund founded by former Citadel traders, is executing an aggressive growth strategy that has tripled its assets under management to $7 billion while significantly expanding headcount and upgrading its physical footprint. The fund recently relocated to a larger office in Kensington, underscoring its confidence in sustained expansion and talent acquisition across London's competitive financial services market.
The fund's hiring activity this month reflects a deliberate strategic pivot toward quantitative research capabilities. James Osoi joined as a quant researcher, bringing over five years of experience from Balyasny, where he worked on quantamental research spanning London and Singapore operations. Prior to Balyasny, Osoi held a position at private equity firm Orbis Capital Management focused on quant research and data insights. This hire adds to Ilex's nascent quant team, which includes Paul Ward, who joined in January 2025 from UBS, where he held the title of head of quantitative investment solutions for UBS's wealth management division.
Compensation data from Ilex's most recent financial accounts (year ending March 2025) reveals the fund's capacity to attract senior talent. The fund paid 23 employees an average of £738,000 ($997,000) in salaries and wages, positioning it competitively within London's hedge fund compensation landscape. The top earner at the firm received £80 million, reflecting the skewed earnings distribution typical of highly profitable hedge funds.
Ilex's emphasis on building quant research infrastructure suggests the fund intends to differentiate itself through systematic, data-driven investment strategies rather than relying solely on the discretionary trading expertise of its founder-principals. This strategic direction aligns with broader trends across the hedge fund industry, where quantitative capabilities have become increasingly central to competitive positioning and risk management.
The fund's hiring activity this month reflects a deliberate strategic pivot toward quantitative research capabilities. James Osoi joined as a quant researcher, bringing over five years of experience from Balyasny, where he worked on quantamental research spanning London and Singapore operations. Prior to Balyasny, Osoi held a position at private equity firm Orbis Capital Management focused on quant research and data insights. This hire adds to Ilex's nascent quant team, which includes Paul Ward, who joined in January 2025 from UBS, where he held the title of head of quantitative investment solutions for UBS's wealth management division.
Compensation data from Ilex's most recent financial accounts (year ending March 2025) reveals the fund's capacity to attract senior talent. The fund paid 23 employees an average of £738,000 ($997,000) in salaries and wages, positioning it competitively within London's hedge fund compensation landscape. The top earner at the firm received £80 million, reflecting the skewed earnings distribution typical of highly profitable hedge funds.
Ilex's emphasis on building quant research infrastructure suggests the fund intends to differentiate itself through systematic, data-driven investment strategies rather than relying solely on the discretionary trading expertise of its founder-principals. This strategic direction aligns with broader trends across the hedge fund industry, where quantitative capabilities have become increasingly central to competitive positioning and risk management.
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