That premium has been critical to institutions pursuing their long-term return goals and achieving intergenerational equity (preserving the portfolio's purchasing power for future generations of constituents after accounting for the institution’s spending rate and inflation). Over the past two decades, however, that premium has compressed significantly for the broad private equity (PE) universe, narrowing from approximately 700-1,200 basis points in the mid-2000s to as little as 100–200 basis points today (see chart below). While top-quartile managers have proven more resilient, the broad universe has seen the historical premium become increasingly challenged.
Interestingly, much of this compression reflects the extraordinary strength of public equity markets, particularly the concentration of returns in U.S. mega-cap technology stocks, rather than a deterioration in absolute private equity performance. Since 1971, the S&P 500 has compounded at ~11 percent annualized. Over the trailing 10 years through 2025, that figure rose to nearly 16 percent per year, inclusive of an annualized return of approximately 23 percent for the three years ending December 31, 2025. However, the evidence suggests that specific segments of private markets, particularly the lower-middle market, sector-specialist strategies, and early-stage venture capital, may retain structural advantages that can sustain meaningful premiums for disciplined investors with strong manager selection capabilities. Looking ahead, several converging forces could threaten to compress premiums further given the expected influx of retail capital via 401(k) plans. This has the potential to further contribute to record levels of dry powder, elevated entry multiples, and intensifying LP (Limited Partner) scrutiny of net-of-fee, realized returns.
A question of growing urgency among institutional allocators concerns the potential influx of
retail capital into private markets via 401(k) plans, and its implications for the forward premium.
The evidence strongly suggests that the aggregate private equity premium has compressed
relative to its historical levels, driven by several converging forces:
And while some of these macro factors have been in play for some time, the recent events surrounding attempts to introduce retail capital to private markets, specifically via 401(k) plans, may further intensify some of these dynamics.
On August 7, 2025, President Trump signed Executive Order 14330, “Democratizing Access to Alternative Assets for 401(k) Investors,” directing the Department of Labor, SEC, and Treasury to relieve regulatory burdens that restrict defined-contribution plans from accessing alternative assets. In January 2026, the Retirement Investment Choice Act was introduced in Congress to codify the executive order into legislation.
The potential scale of this shift is substantial. The U.S. defined-contribution market holds approximately $12.5 trillion in assets. Even a modest 1-2 percent allocation to private alternatives would represent roughly half of the entire PE fundraising total in any single year.
However, it is important to recognize that this capital will not enter private markets uniformly. The structural realities of defined-contribution plans - daily valuation requirements, participant liquidity expectations, and the need for recognizable brand-name managers with broad distribution infrastructure, mean that the vast majority of 401(k) capital will flow into the largest, most accessible segments of the market: mega-cap buyout funds, semi-liquid credit vehicles (BDCs), and broadly diversified alternatives products. And these are the segments where premiums are already thinnest.
There is, however, a critical nuance when evaluating the impact of retail capital: many retail vehicles offer periodic redemption windows (typically quarterly, with 5 percent gates). Which means the capital entering private markets through these channels is not accepting the same lock-up terms as traditional institutional LP capital. These vehicles may carry redemption risk that fully committed capital does not. The implication is that the “true” illiquidity premium, the compensation for genuinely patient, locked-up capital with no redemption optionality, may
compress less than the headline data suggest. Investors who commit truly patient capital through traditional closed-end structures may see their relative advantage increase as the economic distinction between semi-liquid and fully locked-up capital becomes more meaningful.
The private markets premium is not disappearing, it is migrating. The aggregate premium for the broad PE universe has narrowed, driven primarily by extraordinary public market strength and the growing capital supply targeting large-cap segments. However, the premium remains robust for top-quartile managers operating in the lower-middle market, sector-specialist strategies, and early-stage venture capital.
The potential introduction of 401(k) capital into private markets is likely to accelerate this bifurcation. Retail-friendly products will concentrate capital in the most accessible, largest-fund segments, precisely where premiums are already thinnest. Investors with access to the lower-middle market, proprietary deal flow, and operationally oriented managers may find their structural advantages amplified rather than diluted.