Understanding Co-investments

Co-investments are direct investments made by a limited partner (LP) alongside a private equity fund into a specific portfolio company. Rather than committing capital only to a blind pool, the LP selectively invests additional capital into individual deals that the general partner (GP) is executing.

At a basic level, the structure is straightforward. A GP identifies an investment opportunity and typically funds it through its main fund. If the deal size exceeds the fund’s concentration limits, or if the GP wants to reduce its own capital exposure, it may invite select LPs to participate. These LPs invest directly into the transaction, usually on similar terms to the main fund but often with reduced or no management fees and carried interest.

Co-investments sit somewhere between fund investing and direct investing. LPs rely on the GP’s sourcing, underwriting, and execution capabilities, but they gain exposure to a specific asset rather than a diversified portfolio.

From an LP perspective, co-investments offer several clear advantages. The most notable is economics. Because fees are typically lower than in commingled funds, co-investments can enhance net returns. They also provide greater control over capital deployment. Instead of committing capital upfront and waiting for the GP to invest it, LPs can choose which deals to back, allowing for more targeted exposure.

However, this selectivity introduces additional requirements. Co-investments demand faster decision-making, deeper underwriting capability, and internal resources to assess opportunities on tight timelines. Unlike primary fund commitments, where due diligence is focused on the manager, co-investments require asset-level analysis.

In a portfolio context, co-investments serve several roles.

First, they act as a return enhancer. Lower fee structures mean that, all else equal, gross-to-net leakage is reduced. Over time, this can have a meaningful impact on overall portfolio performance.

Second, they provide a tool for portfolio construction. LPs can use co-investments to increase exposure to specific sectors, geographies, or strategies where they have conviction, effectively tilting their portfolio beyond what is achieved through fund commitments alone.

Third, they can improve capital efficiency. Co-investments typically have shorter J-curves compared to primary funds, as capital is deployed more quickly and often into more mature assets. This can help smooth cash flow profiles and reduce the drag associated with uncalled commitments.

Finally, co-investments deepen GP relationships. Access to co-investment opportunities is often allocation-based and relationship-driven. LPs that can move quickly and add value as partners are more likely to receive consistent deal flow, strengthening their position with top-tier managers.

That said, co-investments are not without challenges. They can increase concentration risk, particularly if deployed aggressively into a small number of deals. There is also adverse selection risk; while top-tier GPs aim to offer high-quality opportunities, LPs must be mindful that not all deals are equal. Building the internal capability to evaluate and execute co-investments is therefore critical.

In practice, co-investments are most effective when integrated deliberately into a broader private markets programme. They are not a substitute for primary fund commitments but a complementary tool. When executed well, they can enhance returns, improve portfolio precision, and strengthen manager relationships without fundamentally altering the risk profile of the overall portfolio.