The Labor Department proposed a rule at the end of March that would make it easier for a 401(k) plan to hold private equity and private credit. Comments closed on June 1 and ran to more than 47,000. The Securities and Exchange Commission proposed its own retail access package on September 30. Nothing is final. The 2020 letter permitting private assets inside a diversified fund still stands, the 2021 statement warning small plan sponsors off was withdrawn last year, and the Supreme Court heard argument three weeks ago on how much a plan sponsor has to prove.
The public argument is about returns and fairness, whether an ordinary saver should get the investments a pension fund gets. The operational problem is narrower. A 401(k) has to show every participant a balance every evening and cut a check on demand. Private equity and private credit have no daily price and cannot be sold quickly. Everything interesting about these products is in how that gap gets covered.
What Is Actually Being Built
Nobody is putting a private equity fund on a plan menu as a standalone choice. The vehicle is a target-date collective trust with a private sleeve, or a managed account, and in the announced products the sleeve runs between 5 and 20 percent of assets, scaling with the participant's age. One glidepath built this way puts more private equity in younger savers' accounts and more private credit in the accounts of people near retirement, so the illiquid portion does not necessarily shrink to nothing at the target date. Its composition changes.
Adoption is still small. Industry survey data put the share of plan sponsors offering alternative investments at 3.9 percent in 2024, up from 2.2 percent the year before.
The Mechanics of a Daily Price for an Asset Valued Quarterly
The managers' own disclosures are the clearest description. Private funds are officially valued monthly or quarterly. To produce a daily number, the manager starts from the last official valuation, adjusts for money in and out, and moves the figure with a public market index as a proxy. The industry calls this now-casting, or an account roll forward. The result is that the daily price of the private sleeve is driven substantially by public prices, because a public index is the only thing available that moves daily.
Underneath that, the appraisal itself is old. General partners typically report valuations once a quarter, 45 to 75 days after the quarter closes, so a fund that publishes promptly is using the prior quarter's marks. One sponsor of these products states the consequence plainly: an investor redeeming against a December valuation may be priced on company valuations from September, or from June. The Labor Department's proposed safe harbor sets the floor at valuation at least quarterly by an independent process, which means the proposal accepts quarterly appraisal marks as prudent inside a fund priced every day.
Who Is Allowed Out, and How Fast
The liquidity is tiered, and the tiers are not equal. In one product's published terms, participant transactions are accepted daily, while full plan sponsor redemptions are accepted quarterly with 90 days' notice. The participant has daily access. The employer that wants to fire the fund waits a quarter and gives three months' warning. At least 80 percent of that fund sits in liquid index components, which is what makes the daily window possible.
The closest real-world test came in a non-traded real estate trust with monthly and quarterly redemption caps. In December 2022, roughly $3.8 billion was requested and about $151 million paid, around four percent of demand, and the proration ran about fifteen months. A paper published this summer examined 195 semi-liquid funds and found that those relying most heavily on unobservable valuation inputs hit their first binding redemption cap more than twice as fast as transparent peers. Cash buffers did not neutralize the effect.
What It Costs and Who Carries the Difference
Fee figures in circulation differ by an order of magnitude. The trustee of one target-date series reports an all-in implementation cost averaging 42.2 basis points, which if it genuinely includes the carried interest inside the underlying vehicle would be remarkable. A recordkeeper's partner funds were reported at 1 to 1.6 percent, against roughly 0.28 percent for an average target-date mutual fund. Retail evergreen private equity funds, a different product sold a different way, carry a median expense ratio near 3.76 percent.
For someone taking required distributions, what matters is not the long-run return on private assets but the fact that the number on the statement is a model output and the cash has to come from the liquid 80 percent. Three things are worth watching rather than acting on. Whether the Labor Department finalizes the rule as proposed. Whether the sleeve shows up inside a default target-date fund, which is where most savers would get it without choosing it. And whether more than 90 percent of continuation fund deals keep trading below the marks the sponsors themselves assigned.
— John Stone