Feeder Fund

Hedge Fund Strategies · intermediate · CC-BY-4.0

A feeder fund is an investment vehicle that pools capital from investors and channels it into a master fund, which consolidates assets from multiple feeder funds and executes the portfolio strategy centrally. The master-feeder structure is the dominant organizational architecture for hedge funds with multiple investor types (onshore U.S., offshore, ERISA), enabling a single investment strategy to be offered through multiple legal wrappers while centralizing trading, execution, and portfolio management.

Key takeaways

• A typical master-feeder structure includes a Cayman Islands offshore feeder (for non-U.S. investors and U.S. tax-exempt investors), a Delaware limited partnership onshore feeder (for U.S. taxable investors), and a master fund into which both feeders invest.
• Centralized portfolio management in the master fund ensures all investors receive identical investment exposure and proportional allocation of gains, losses, and expenses.
• Feeder funds can have different fee structures, subscription/redemption terms, and minimum investment requirements, allowing customization for different investor segments.
• The Madoff fraud was perpetrated largely through a feeder fund structure, where feeder fund operators collected fees for directing investor capital to Madoff's fictitious master strategy.
• ERISA compliance is a key consideration: offshore feeder funds with significant U.S. 'plan assets' may become subject to fiduciary rules under ERISA, requiring careful monitoring of the 25% threshold.

Explanation

The master-feeder structure emerged as the dominant hedge fund organizational model in the 1990s to solve a fundamental tax and regulatory conflict between different investor types. U.S. taxable individual investors prefer a domestic limited partnership structure for clean pass-through of capital gains and ordinary income, enabling use of the long-term capital gains rate. Non-U.S. investors and U.S. tax-exempt entities (pension funds, endowments) prefer offshore vehicles that avoid the US withholding taxes and UBTI (Unrelated Business Taxable Income) that would arise from investing directly in a U.S. partnership that trades on margin or takes short positions.

The master-feeder solves this by maintaining separate legal vehicles for each investor type—feeders—while aggregating all capital in a single master fund where portfolio management actually occurs. Each feeder owns a proportional interest in the master fund, and the master fund's gains, losses, income, and expenses flow through to each feeder in proportion to its ownership interest. The feeder funds then allocate these results to their own limited partners according to the feeder's specific terms.

From an operational standpoint, the master-feeder structure provides significant efficiencies. All trading is executed at the master fund level, allowing portfolio managers to optimize execution without coordinating across multiple separate fund vehicles. All prime brokerage relationships, securities lending, and leverage arrangements are at the master fund level. Risk management, compliance, and portfolio attribution are straightforward because there is only one portfolio to manage. The feeders are essentially pass-through vehicles handling investor administration, legal entity requirements, and regulatory compliance for their specific investor class.

The fee structure in master-feeder arrangements requires careful design. Management fees and performance fees can be charged at either the feeder level or the master level—most commonly at the feeder level, allowing different fee arrangements for different investor classes (e.g., institutional investors may negotiate lower management fees through a separate share class in the feeder). Expense allocation across master and feeder funds must be explicitly defined in the fund documents to ensure transparency and avoid disputes.

The Madoff Ponzi scheme highlighted significant governance risks in feeder fund structures. Feeder fund operators—including Fairfield Greenwich Group, Tremont Group, and others—invested billions of dollars from their clients in Madoff's investment advisory accounts. These feeders collected management fees and due diligence fees for ostensibly conducting oversight, yet the fundamental fraud escaped detection for decades. The scandal prompted significant industry soul-searching and regulatory reform around feeder fund governance, including requirements for independent fund administration, enhanced due diligence standards, and greater transparency in the use of sub-advisers.

Formula

Feeder Fund NAV = Feeder's Ownership % × Master Fund NAV; Feeder's Ownership % = Feeder's Capital Account / Total Master Fund Capital

Example

A global macro hedge fund manager organizes a master-feeder structure: (1) A Cayman Islands-domiciled master fund, HF Master Fund LP, holds all portfolio assets and executes all trades. (2) HF Onshore Fund LP (Delaware), a U.S.-domiciled feeder fund for U.S. taxable investors, invests 100% of its assets in the master fund. (3) HF Offshore Fund (Cayman) invests 100% of its assets in the master fund and accepts non-U.S. investors and U.S. tax-exempts. In January, the master fund generates $50 million in gains on total assets of $500 million (10% return). The onshore feeder owns 40% of the master ($200 million) and allocates $20 million of gains to its U.S. LP investors, who receive the appropriate Schedule K-1 tax forms. The offshore feeder owns 60% and allocates $30 million to its offshore investors. All investors receive identical 10% returns on their invested capital, with all fee calculations performed at the feeder level according to each feeder's specific terms.

Related terms

Convertible Arbitrage Distressed Debt Event Driven Strategy Global Macro Hedge Fund Index Arbitrage Invested Capital Leverage Margin Master Fund Offshore Fund Onshore Fund