The Private Equity Reckoning: What Happens When the Debt Machine Finally Stalls?

Not too long ago, private equity seemed to be practically frictionless. Deals moved swiftly, money was inexpensive, and exits—whether they were quiet sales or ostentatious initial public offerings—seemed to come at the perfect time. Investors spoke confidently about “value creation” while seated in conference rooms with glass walls in Manhattan or London, but they frequently meant leverage—cheap, plentiful, and forgiving. The world has begun to fade. Initially, slowly. Then all at once.

It’s difficult to ignore how the numbers have changed. Private equity has long promised to beat public markets, and occasionally it has. However, returns have largely followed the S&P 500 since about 2006. The disparity has recently grown in the incorrect direction. Private equity funds produced annual returns of about 5.8% between 2022 and 2025, while the S&P approached 11.6%. The data consistently suggests otherwise, despite investors’ apparent belief that the old narrative still holds true.

When you walk through its mechanics, the issue feels almost tangible. Motion—buy, improve, sell—is essential to private equity. However, the selling process has stagnated. In 2021, exits were everywhere, like traffic flowing freely through a city at midnight. That traffic had slowed to a crawl by 2023. fewer transactions. smaller transactions. longer wait times. Whether this is a transient slowdown or something more structural is still unknown.

The balance sheet itself contains a portion of the problem. For more than a decade, low interest rates allowed firms to pile debt onto acquisitions, sometimes six or seven times earnings. When circumstances were right, that leverage increased returns. However, the math changed overnight when rates spiked between 2022 and 2023. The amount of debt increased. thinner margins. It now feels more like financial strain than financial engineering.

Many businesses don’t seem to have fully adapted to this new reality. Rather, they have stuck with valuations that don’t accurately represent what buyers are willing to pay. The numbers in portfolio reviews are still tidy, almost comforting. However, the discrepancy between expectations and reality becomes clear when you look beyond those spreadsheets. Purchasers hesitate. Sellers bide their time. Deals fail to close.

There are repercussions to that hesitation. Approximately 31,000 unsold businesses worth a combined $3.7 trillion are held by private equity funds. A few of these companies are strong. Others, not so much. It’s similar to watching cargo pile up at a port during a strike to watch this inventory accumulate; everything is technically still there, but nothing is moving.

The phrase “zombie funds” has become more common, usually in more subdued discussions. These funds have been in possession of assets for more than ten years, but they haven’t been able to sell them. They keep collecting fees, which leads to an awkward situation. Investors, including endowments and pension funds, are left waiting for money that never shows up. These funds have historically yielded returns of roughly 53 cents on the dollar. It’s getting closer to 44 now. That shift may not sound dramatic at first glance, but over billions, it becomes hard to ignore.

Tension manifests itself in subtle ways in certain pension offices. Late into the night, finance teams are recalculating projections. At quarterly meetings, trustees are posing more pointed questions. There’s a quiet anxiety in those rooms, the kind that doesn’t make headlines but shapes decisions. These institutions rely on steady distributions to fund real-world obligations—retirement checks, scholarships, research grants. Everything else feels more constrained when the cash flow slows.

It’s possible that perception, rather than performance, is the industry’s greatest obstacle. Private equity was built on the idea that it could do something public markets couldn’t—unlock hidden value, improve operations, generate superior returns. However, the argument becomes more difficult to support if those returns begin to appear mediocre or, worse, lagging.

Nevertheless, belief persists. You can sense it when you stroll through industry conferences. Executives speaking with conviction about operational improvements, about shifting away from leverage toward genuine growth. That is true. Some firms are adapting, focusing more on revenue expansion, cost discipline, real management changes. But adaptation takes time, and the clock—especially for aging funds—is already ticking.

Watching this unfold, there’s a feeling that private equity isn’t collapsing, but recalibrating under pressure. The easy version of the business—cheap debt, rising valuations, predictable exits—may be gone for now. It’s unclear what will take its place. A slower, more operationally demanding model. Fewer shortcuts. More risk.

Perhaps that is the true reckoning. Not a sudden crash, but a gradual recognition that the machine doesn’t run the way it used to.