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Hedge Fund Two Sigma Shutters $120 Million Legacy Eclipse Fund

Reported by Bloomberg
Oct 15, 2025· 2 min read
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Key Takeaways
  • • Two Sigma Investments is closing its $120 million Eclipse fund, with final withdrawal effective December 31, 2025, marking the sunset of a legacy investment vehicle from the major quant hedge fund.
  • • The closure is part of a strategic restructuring effort to simplify Two Sigma's fund structure and consolidate its offerings across its multi-billion-dollar asset base.
  • • Two Sigma, which manages more than $50 billion in assets under management, continues to operate as one of the world's largest quantitative hedge funds, competitive with Renaissance Technologies.
  • • The Eclipse fund shutdown does not signal broader distress at Two Sigma but reflects intentional portfolio optimization and streamlining of legacy products.
Summary
Two Sigma Investments, one of the world's largest quantitative hedge funds, is winding down its $120 million Eclipse fund effective December 31, 2025. According to Bloomberg and multiple corroborating sources, the closure is being executed as part of a deliberate effort to simplify the firm's fund structure.

The decision to shutter the Eclipse fund represents a consolidation strategy rather than a sign of operational difficulty. Two Sigma, founded by John Overdeck and David Siegel, manages more than $50 billion in assets under management and ranks among the most prominent quant-driven investment firms globally, operating on a comparable scale to Renaissance Technologies. The firm has maintained its competitive position in the quantitative investing space through sophisticated algorithmic trading and data-driven portfolio management.

Investors in the Eclipse fund will have until the end of 2025 to arrange capital withdrawals ahead of the formal closure date. The streamlining of this legacy product aligns with broader industry trends where large alternative asset managers periodically rationalize their fund lineups to reduce operational complexity, lower costs, and concentrate resources on core or higher-performing strategies.

Two Sigma's decision to consolidate its fund offerings reflects the firm's maturation and focus on managing its substantial capital base more efficiently. The closure carries no apparent performance-related implications, as the announcement emphasizes structural optimization rather than fund performance issues.

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Sources

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

Bloomberg Hedge Fund Two Sigma Shutters $120 Million Legacy Eclipse Fund