More choices produce worse decisions
The intuition that a bigger menu serves employees better does not survive contact with how people actually behave. Long fund lists are consistently associated with lower participation and more scattered, less coherent portfolios. Faced with forty options and no expertise, a meaningful share of employees either spread money evenly across whatever is listed, park everything in cash, or never enroll at all.
Most well-constructed lineups land somewhere around fifteen to twenty-five core options plus a target-date series. Enough to cover the major asset classes, few enough that each one has an identifiable purpose.
What a complete lineup covers
The goal is full coverage of the meaningful asset classes without redundancy. Two large-cap growth funds from different families are not two choices — they are one choice and a source of confusion.
- →A qualified default investment alternative, almost always a target-date series — this is where most participant money will actually sit.
- →Core equity exposure: domestic large cap, mid and small cap, and international developed markets.
- →Fixed income: a core bond fund, and typically a capital preservation option such as a stable value or money market fund.
- →Optionally a broad diversifier such as real assets or emerging markets, if the committee can articulate why.
- →Low-cost index options across the major categories, so cost-conscious participants have a coherent path.
Share classes are the cheapest win available
The same fund is frequently available in several share classes that differ only in expense ratio and eligibility. A plan holding a retail share class of a fund for which it qualifies at an institutional level is paying more for an identical portfolio.
This is among the most common findings in a lineup review and among the easiest to fix — it requires no change in investment strategy, no participant communication about a new fund, and no reallocation. It is worth asking directly whether every fund in the plan is held in the lowest-cost share class the plan is eligible for.
The default option matters more than everything else
Because most participants never make an active election, the qualified default investment alternative ends up holding the majority of assets in a typical plan. It deserves more committee attention than it usually receives.
Target-date series differ substantially from one another in ways that are invisible from the name: how aggressively equity exposure declines with age, whether the series is built to carry participants through retirement or only to it, whether the underlying funds are active or index, and what the all-in cost is. Two series with the same target year can hold materially different equity allocations.
Selecting a QDIA prudently — and documenting why that series suits this workforce — is a core fiduciary act, not a default setting to accept from a provider.
Monitoring is the part that creates the record
Selecting funds is a one-time decision. Monitoring them is the ongoing duty, and it is where fiduciary exposure is usually created or avoided.
An investment policy statement sets the criteria in advance: performance relative to a stated benchmark and peer group over defined periods, expense relative to category, manager tenure, and style consistency. Funds that fall short go on watch. Funds that stay short get replaced. The value of writing the criteria down first is that decisions become the application of a standard rather than a reaction to a bad quarter.
- →Review on a set schedule, and record the review even when nothing changes.
- →Compare against the benchmark named in the policy statement, not a benchmark chosen afterward.
- →Keep watch-list decisions and the reasoning in the minutes.
- →Re-examine share class eligibility whenever plan assets grow materially.