Private Equity's Small Cap Backlog Keeps Piling Up

Private equity firms are sitting on a record pile of companies they bought years ago and have yet to sell. In the US alone, PitchBook counted 13,325 unsold, sponsor-owned companies earlier this year. At the current pace of exits, clearing that backlog would take roughly 11 years.

Globally, the problem is even bigger. Bain's 2026 Global Private Equity Report puts the worldwide backlog at about 32,000 unsold companies worth $3.8 trillion [1]. Average holding periods at exit have stretched to roughly seven years, well beyond the three to five years private equity firms have traditionally targeted.

#The Middle Of The Market Is Stuck

Taking a portfolio company public has traditionally been one way for private equity firms to cash out of an investment. But an IPO only makes sense as an exit if the valuation is high enough for the sponsor to realize an acceptable return. If a company is worth less than the PE firm paid for it, or well below the valuation the firm is carrying on its books, there is little incentive to take it public and lock in a disappointing valuation.

Nevertheless, the 2025 to 2026 IPO market has brought a few notable private equity-backed companies to market, mostly among the biggest and most polished companies. Medline's $6.26 billion listing valued the medical supplier at roughly $54 billion, while buyout-backed fintech Klarna also found its way to the public market.

The problem sits below that tier. Much of the backlog consists of companies bought between 2018 and 2021, when money was cheap and valuations were high. Many are mid-sized businesses that do not have the scale or growth story to command the multiples their owners want today.

The consequences are now becoming clearer. Industry executives warned in September that many buyout funds that deployed capital during the 2019 to 2021 boom are likely to fall short of their original return targets, in part because sponsors remain reluctant to sell assets bought at high valuations and crystallize weaker returns [2]. At the same time, some long-held assets are finally being tested in the market. In September, Thoma Bravo began exploring a sale of Foundation Software, which it acquired in 2020, at a valuation of more than $2 billion. But across the industry, many older holdings remain difficult to sell as buyers and sellers struggle to agree on valuations.

That leaves thousands of companies caught between the price their private equity owners want and what today's buyers are willing to pay.

#Pressure Is Building On Limited Partners

The slow exits are showing up in fund returns. Distributions to limited partners, measured against the value still held in funds, have stayed below 15% for four straight years, a level last seen during the 2008 to 2009 financial crisis.

That is squeezing the investors who fund these deals. It also makes it harder for private equity firms to raise their next fund when investors are still waiting to get cash back from the last one.

Sponsors are increasingly leaning on workarounds instead. Continuation funds allow a firm to move a company into a new vehicle it also controls, while loans against a fund's unrealized gains can free up cash without an actual sale.

But neither solves the underlying problem. At some point, sellers and buyers still have to agree on what these companies are worth. Apollo's Scott Kleinman summed up the challenge when he said the industry needs to "start capitulating" on price to get moving again [3].

#What This Means For Small Cap Investors

For retail investors, the first thing to adjust is expectations.

When sponsors do manage to exit right now, it is generally the biggest and most polished companies getting through, not the mid-sized businesses that make up much of the backlog. This is unlikely to turn into a sudden wave of newly listed, attractively priced small cap stocks.

The more interesting angle is the potential for take-private deals.

Private equity firms are sitting on well over $1 trillion of uncommitted capital that still needs to find a home. A cheap, cash-generative public company offers something valuable in this environment. A sponsor can buy it today rather than wait for another private equity firm to finally accept a lower price.

That makes certain small caps worth watching as potential targets. Potential targets often share some of the same characteristics, including a reasonable valuation, positive free cash flow, predictable or recurring revenue, manageable debt, modest capital requirements, and an enterprise value small enough for a sponsor to finance.

Industries where private equity firms already have extensive operating experience can be especially interesting. Software and business services are obvious examples, although the same logic can apply elsewhere.

None of that is a reason to buy a weak company simply because somebody might acquire it. A takeover is never guaranteed. But when a small cap already looks attractive based on its valuation and underlying business, the possibility of a private equity bid can provide an additional source of upside.

#Where To Look In Your Own Portfolio

There are two other places where the private equity backlog can show up directly in a retail portfolio.

If you own listed alternative asset managers such as Blackstone, KKR, Apollo, or Carlyle, separate management fees from performance-related earnings when looking at results.

Management fees can keep coming in even when exits are slow because they are primarily tied to assets under management. Performance-related income is more sensitive to realizations. A prolonged exit drought can therefore weigh on one part of the earnings picture even while recurring management fees remain healthy.

Investors considering retail products that offer private equity exposure, including evergreen and interval funds, should also pay close attention to liquidity.

Putting private assets inside a retail investment vehicle does not make the underlying investments liquid. Investors need to understand how frequently they can redeem, whether redemptions can be limited, and how the fund plans to meet withdrawals when the underlying portfolio companies may take years to sell.

That matters more when industrywide distributions have remained below 15% of fund value for four straight years. The difficulty institutional investors are having getting cash back from private equity is a reminder that liquidity deserves as much attention as the return numbers advertised to investors.

For investors, the $3.8 trillion backlog is a reason to watch where private equity's money goes next. Sponsors need exits, but they also have enormous amounts of capital left to deploy. For the right publicly traded small cap, that combination could eventually put a private equity buyer on the other side of the table.