What Is a Fund of Funds?
Most funds build a portfolio out of individual stocks or bonds. Some take a different route entirely, building their portfolio out of other funds instead — a layered approach with its own set of trade-offs worth understanding.
The short answer
A fund of funds is a pooled investment that holds shares of other funds — mutual funds, ETFs, or both — rather than buying individual stocks or bonds directly. This structure lets one fund offer broad diversification across many underlying strategies through a single investment, but it can also mean paying fees at two levels: the fund of funds itself and each of the funds it holds.
Why this structure exists
Building a diversified portfolio across many asset classes or investment styles usually means selecting and monitoring a range of individual funds yourself. A fund of funds packages that work into one product, using a single fund to hold a curated mix of other funds so an investor doesn’t have to assemble and manage that mix on their own. This can appeal to investors who want broad diversification without picking each underlying fund individually.
Common places you’ll find this structure
- Target-date retirement funds. Many target-date funds designed around a retirement year are actually funds of funds, holding a mix of underlying stock and bond funds that shifts over time as the target date approaches.
- Multi-asset or balanced strategies. Some funds aiming to combine stocks, bonds, and other asset classes do so by holding other funds that each specialize in one piece of that mix, rather than buying the underlying securities directly.
- Fund-of-hedge-funds structures. Some vehicles pool investor money and allocate it across multiple external investment strategies, though these are typically less accessible to everyday investors than retail fund-of-funds products.
The layered-fee trade-off
The biggest thing to understand about a fund of funds is that fees can stack. The fund itself may charge its own expense ratio for the work of selecting and managing the mix of underlying funds, and each underlying fund typically charges its own separate expense ratio as well. Depending on how a particular fund of funds is structured and priced, this layering can mean somewhat higher combined costs than building a similar mix of individual funds directly — though some fund-of-funds products are designed to minimize or absorb part of that overlap. Comparing the total combined expense figure, not just the headline fee, is worth doing before assuming what a fund of funds actually costs.
A simplified illustration
Suppose a fund of funds allocates money across three underlying funds, each charging its own management fee, and layers on an additional fee of its own for selecting and rebalancing that mix. The investor’s total cost is the sum of all those layers, not just the fund of funds’ stated headline number. This is a simplified, hypothetical example meant to illustrate the general mechanic, not a description of any actual product’s pricing.
Why diversification is still the main appeal
Despite the fee considerations, a well-constructed fund of funds can offer genuine diversification benefits by spreading exposure across multiple underlying strategies, asset classes, or managers within a single holding. This structure is somewhat conceptually similar to how a master-feeder fund structure pools assets for scale, though the two solve different problems — one is about diversification across strategies, the other about operational efficiency.
What to weigh
A fund of funds trades some simplicity and built-in diversification for the possibility of layered costs, so it’s worth looking past the headline expense ratio to understand the full fee picture and what the underlying funds actually hold before deciding whether the structure fits a particular goal.