Key Takeaways
- • Two Sigma's London entity (Two Sigma International) raised average compensation to £503,000 ($676,000) in 2025, representing a 34% year-over-year increase from £377,000 in 2024.
- • Headcount at Two Sigma International declined from 93 to 85 employees, suggesting potential staff relocations to the firm's separate trading entity (Two Sigma Securities UK) rather than outright departures.
- • Two Sigma Securities UK, the firm's proprietary trading arm, maintains significantly higher average compensation at £608,000 per employee, indicating differentiated pay structures across business units.
- • The hedge fund is actively expanding London operations in 2026, having relocated to a new office near Liverpool Street with renovation plans underway and eight active job openings across both entities.
- • Despite recent co-founder disputes and 2024 staff reductions, Two Sigma continues investing in headcount and compensation, signaling confidence in London operations within its $64 billion asset base.
Summary
Two Sigma raised average salaries and wages to approximately £503,000 ($676,000) at its London-based Two Sigma International entity in 2025, marking a substantial 34% increase from the prior year's £377,000 average. This progression represents the continuation of an upward compensation trend—average pay per employee stood at £345,000 in 2023 and £286,000 in 2022—underscoring the quantitative hedge fund's commitment to competitive remuneration despite recent organizational challenges.
The compensation increase occurred alongside a reported headcount decline from 93 to 85 employees at Two Sigma International, the entity focused on investment management and administration services. However, this headcount reduction may not reflect actual departures; employees likely transferred to Two Sigma Securities UK, the firm's proprietary trading and market-making division, which has not yet filed 2025 accounts. Two Sigma Securities UK reported 14 employees in 2024 at an average compensation of £608,000 per head, indicating materially higher pay within the trading operations.
Two Sigma has faced reputational headwinds in recent years, including a public dispute between co-founders and staff reductions in 2024 affecting approximately 200 employees (10% of the workforce). Despite these challenges, the firm is pursuing aggressive growth in London. In March 2026, Two Sigma relocated to a new office near Liverpool Street, occupying one floor with renovation underway on additional space to accommodate expansion. As of the report date, the fund had eight open positions across both entities, with Two Sigma Securities specifically noted as "entering an exciting growth phase," suggesting strategic investment in the trading and market-making franchise.
The compensation increases and expansion trajectory reflect confidence in the London market and the firm's competitive positioning, notwithstanding earlier organizational turbulence. Two Sigma manages approximately $64 billion in assets under management, positioning its London operations as a material component of global strategy.
The compensation increase occurred alongside a reported headcount decline from 93 to 85 employees at Two Sigma International, the entity focused on investment management and administration services. However, this headcount reduction may not reflect actual departures; employees likely transferred to Two Sigma Securities UK, the firm's proprietary trading and market-making division, which has not yet filed 2025 accounts. Two Sigma Securities UK reported 14 employees in 2024 at an average compensation of £608,000 per head, indicating materially higher pay within the trading operations.
Two Sigma has faced reputational headwinds in recent years, including a public dispute between co-founders and staff reductions in 2024 affecting approximately 200 employees (10% of the workforce). Despite these challenges, the firm is pursuing aggressive growth in London. In March 2026, Two Sigma relocated to a new office near Liverpool Street, occupying one floor with renovation underway on additional space to accommodate expansion. As of the report date, the fund had eight open positions across both entities, with Two Sigma Securities specifically noted as "entering an exciting growth phase," suggesting strategic investment in the trading and market-making franchise.
The compensation increases and expansion trajectory reflect confidence in the London market and the firm's competitive positioning, notwithstanding earlier organizational turbulence. Two Sigma manages approximately $64 billion in assets under management, positioning its London operations as a material component of global strategy.
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