Mark to Myth

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For most of the past decade, private credit had the most attractive chart in finance, and the attraction was that it had almost no chart at all. While public markets lurched and corrected and occasionally crashed, the value of a private-credit fund tended to do something serene and almost magical: it went up, gently, quarter after quarter, in a line so smooth it might have been drawn with a ruler. No gut-wrenching drawdowns. No sleepless nights. Just a steady, placid accretion of value that made the funds look like a bond portfolio engineered by a Swiss watchmaker. Pension funds and insurers and wealthy individuals poured in, and the industry swelled from a post-crisis curiosity into a colossus managing more than $1.7 trillion, on its way, by some forecasts, to $2.6 trillion by 2028.

There was only one problem with that beautiful smooth line, and it is the problem this entire essay is about: the line was smooth because nobody was allowed to draw it from the outside. Private-credit loans do not trade on any public market. There is no ticker, no order book, no stream of buyers and sellers establishing a price every second the way there is for a stock or a Treasury bond. So when a private-credit fund needs to tell its investors what their stake is worth, the value is set by the only party in the room: the fund manager itself, usually once a quarter, using models and judgment and a powerful, structural incentive to conclude that everything is fine. The serene line was not a measurement of low risk. It was the absence of measurement, dressed up as low risk — and in 2026, the difference between those two things has begun, suddenly and expensively, to matter.

How an opacity became an industry

To understand the danger, you have to understand how private credit ate Wall Street, because the thing that made it grow is the same thing that now makes it fragile.

After the 2008 crisis, regulators forced banks to pull back from risky corporate lending. Into the gap stepped a new set of giants — Apollo, Blackstone, KKR, Ares, Blue Owl — who raised enormous pools of capital from institutions and lent it directly to companies, cutting the banks out of the middle. The pitch was seductive on every axis. To borrowers: faster, more flexible loans with fewer questions. To investors: higher yields than public bonds, plus that wonderful, placid, uncorrelated return stream that made portfolios look less risky on paper. And to the managers themselves: lush, recurring management fees on an ever-growing pile of assets that, conveniently, they got to value themselves.

That last feature is not a side detail. It is the engine. Because private-credit returns are reported without the volatility of a public market — because the manager marks the loans rather than the market pricing them — the asset class delivers what its critics have started calling "volatility laundering": it takes risk that would show up as stomach-churning price swings in a public bond fund and launders it into a smooth line by simply declining to mark it down. The risk does not go away. It is merely made invisible, deferred to some future quarter when reality can no longer be modeled away. For years, that invisibility was sold as a feature — "low volatility," "downside protection," "uncorrelated returns" — and bought as one. It was always, in truth, a timing difference between when a loan goes bad and when the manager admits it.

The whole structure works beautifully as long as two things hold: the loans keep performing, and the investors don't all ask for their money back at once. In 2026, both assumptions cracked at the same time.

The cockroaches

The first crack was the loans. For a long, complacent stretch, private-credit default rates stayed low — partly because the loans were genuinely performing, and partly because a manager who values his own book has every reason to extend, amend, and "mark to model" rather than declare a default that would mar the smooth line. Then, in late 2025, a series of failures arrived that were too large to model away. Auto-related lenders and suppliers — the kind of mid-market companies private credit had gorged on — began to collapse, and the losses landed directly in private-credit portfolios that had been carrying them at or near par.

The two names that lit the fuse were First Brands and Tricolor. First Brands, an auto-parts supplier that had borrowed heavily in the leveraged-loan and private-credit markets, filed for Chapter 11 — and the wreckage revealed that its bank loan covenants had failed to detect billions of dollars of hidden cash commitments, structured as off-balance-sheet financing, that lenders simply had not known were there. Tricolor Holdings, a Dallas-based subprime auto lender and dealership, filed for Chapter 7 liquidation in September 2025 amid allegations of fraud, leaving JPMorgan and others nursing significant losses. Two mid-market companies, two very different failures — one built on financing that was hidden, the other on collateral that may not have existed — and both landing in credit portfolios that had been carrying the exposure as if it were money-good. The unsettling common thread was not leverage; it was concealment. In both cases the risk had been invisible until the company collapsed, which is precisely the property the whole private-credit edifice is built to produce.

Jamie Dimon, the chairman of JPMorgan — the man who bought Bear Stearns out of its subprime grave in 2008 and therefore knows exactly what a hidden credit problem looks like — supplied the line that defined the moment. Asked about the defaults, he reached for an image from the kitchen: "When you see one cockroach," he warned, "there are probably more." It was a deliberately vivid way of saying the thing the smooth line was designed to obscure — that a default is rarely an isolated event, that credit problems cluster, and that an industry which had reported almost no stress for years was unlikely to have actually experienced almost no stress. The cockroaches were not the problem. The problem was a decade of insisting the kitchen was spotless because no one had turned on the light.

Crucially, the arrival of real defaults exposes the central weakness of self-marking: in a downturn, reported net asset values "may not reflect credit deterioration for months." The manager has discretion over when to recognize a loss, and every incentive to recognize it late. Which means the smooth line keeps rising for a while after the underlying loans have started to rot — right up until the gap between the marked value and the real value becomes too large to sustain, at which point the correction is not a gentle slope but a cliff. Investors looking at a placid NAV in 2026 cannot know whether they are looking at a healthy portfolio or a sick one that simply hasn't been marked yet. That is not a flaw in the data. The absence of the data is the product.

The doors close

The second crack was the redemptions, and this is where the abstraction of marks became, for many investors, a very concrete inability to get their money back.

Much of the money that flooded into private credit in recent years came through "semi-liquid" or "perpetual" funds — vehicles sold to wealthy individuals and even, increasingly, to ordinary retirement savers, that promised the high yields of private lending with the comforting option to redeem periodically. The promise was always a structural lie waiting to be exposed, because there is no honest way to offer daily or quarterly liquidity on an asset that takes years to mature and cannot be sold. When enough investors, spooked by the defaults, tried to redeem at once in 2026, the funds did the only thing they could: they gated. BlackRock, Blue Owl, Morgan Stanley and others restricted or suspended redemptions, trapping investors inside funds whose smooth marks they had trusted precisely because they believed they could leave. You can check out, it turned out, only as long as nobody else is trying to.

The market's verdict on the managers themselves has been brutal and swift, and unlike the private marks, it is real-time and public. Since September 2025, roughly $265 billion of market value has evaporated from the listed shares of the private-credit and private-equity giants. Blue Owl, whose book was heavily concentrated in lending to software companies, has fallen about 67% from its peak. Blackstone is down around 46%, Apollo 41%, KKR and Ares roughly 48% each. Note the savage irony: the public stocks of the firms that sell the virtues of private, un-marked-to-market assets have been marked to market with a vengeance — halved and worse — even as the private funds those same firms manage report comparatively gentle declines. The market is pricing the managers as if the smooth line is a fiction. The smooth line, meanwhile, insists otherwise. They cannot both be right.

The retail trapdoor

There is a darker turn in this story, and it concerns who is being ushered into the building just as the doors begin to stick.

For most of its history, private credit was an institutional game — pensions, insurers, endowments, the kind of investors who understand illiquidity and can afford to lock money up for years. But the industry's growth ambitions long ago outran the institutional pool, and so the managers built the "semi-liquid" perpetual funds precisely to reach a new and vastly larger source of capital: wealthy individuals, and, increasingly, ordinary retirement savers. The push to put private assets — private credit and private equity — into 401(k) plans and mainstream wealth portfolios has been one of the industry's central projects, sold with the same language of high yield and low volatility that institutions were sold, to an audience far less equipped to evaluate a self-reported mark or to understand what "subject to redemption limits" really means.

This is the same pattern that runs through the most dangerous corners of this market — the index funds quietly concentrated in seven stocks, the retirement money mechanically routed into the largest IPO in history — and it has the same moral shape. The sophisticated early money enjoyed the genuinely good years of private credit. The structure is now being widened to admit the least sophisticated money at precisely the moment the defaults are arriving and the gates are coming down. An institution that gets gated is inconvenienced; it has other assets, other liquidity, a team of professionals who read the fine print. A retiree who put a slice of a 401(k) into a "semi-liquid" credit fund because it promised bond-like income with a smoother ride may discover, at the worst possible moment, that the smooth line was a marketing artifact and the exit is bolted. The retail-ization of private credit does not reduce the risk in the system. It relocates it — onto the balance sheets least able to absorb a surprise, and least able to tell a price from a wish.

The tell: Apollo turns on the light

Which brings us to the single most revealing development in the whole saga, and the reason a forensic reader should pay attention now rather than later.

Apollo, run by Marc Rowan and arguably the most sophisticated operator in private credit, has announced that it will begin providing daily pricing for its private-credit holdings — a move Bloomberg described as potentially one of the most impactful developments in the market, and which Apollo has framed as a way to "dispel shadows." Read that decision through the lens of incentives. For a decade, the entire industry's competitive advantage was the absence of daily prices — the smooth line, the volatility laundering, the freedom from the market's daily judgment. For the smartest firm in that industry to suddenly volunteer to price everything daily, in public, is not a routine upgrade. It is the equivalent of the one casino that decides to install cameras over its own tables: it tells you something about what the firm expects is coming.

The most plausible reading is that Apollo can see the forced repricing approaching — through redemptions, through defaults, through regulatory pressure — and would rather control the transition to transparency than have it imposed in a panic. Better to mark your own book down in an orderly, daily drip, on your own terms, than to have a wave of gated redemptions and cascading defaults mark it down for you all at once. The firm best positioned to know whether the marks are honest is racing to replace them with real prices. That is not the behavior of an industry that believes its smooth line was true.

And daily pricing is a one-way door. Once a major firm publishes real-time marks, the comfortable fiction that private credit is "low-volatility" becomes untenable for everyone, because investors and consultants will begin demanding to know why one manager's book moves daily while a rival's sits frozen at par. Transparency, once introduced by the strongest player, tends to become the standard the others are dragged toward — and the others may have far more to hide. That is the quiet menace in Rowan's move: it does not just illuminate Apollo's book; it threatens to switch on the lights across an entire industry that has spent a decade profiting from the dark. The competitor that volunteers for scrutiny is usually the one that has already done the work to survive it. The ones that resist are the ones to watch, because their reluctance is itself a mark — of how far their reported values might sit from anything a buyer would actually pay.

The systemic question

None of this means private credit is a fraud, or that a 2008-scale catastrophe is imminent. The optimistic case, which serious people hold, is that this is a painful but contained shakeout: redemption pressure eases over a few quarters, the gates lift, NAVs decline a manageable 10–20% to reflect reality, and a bloated asset class is trimmed back to a sustainable size without taking the financial system down with it. Much of the underlying lending is to real companies that will repay. Jamie Dimon himself, even as he warned of cockroaches, has argued that at roughly $1.8 trillion the market is still small enough not to threaten the system. The base case is uncomfortable, not apocalyptic.

But the structure has features that should keep a regulator awake. Private credit has grown into systemic importance while remaining, in the words of the Financial Stability Board and the Bank of England, less transparent, less liquid, and more reliant on opacity than the bank lending it replaced — which means its true risks are harder to evaluate precisely when evaluation matters most. The banks are not as insulated as they appear: they have committed something like $123 billion of exposure to private-credit borrowers and the funds that lend to them, so a serious private-credit unwind would not stay quarantined in the shadow system. And the pessimistic scenario that thoughtful analysts assign a real, double-digit probability is genuinely grim: extended gating, cascading defaults, NAVs eventually written down by 30–40%, and funds liquidated at 50 to 70 cents on the dollar over a span of years — the smooth line revealed, far too late, to have been a story all along.

There is one transmission channel that deserves more attention than it gets, and it runs through insurance. Several of the largest private-credit managers are now bound up with life insurers and annuity providers — Apollo and Athene being the defining example — so that the retirement income of ordinary people, the annuities and policies they bought for safety, is increasingly backed by portfolios of exactly these illiquid, self-marked private loans. Insurance is regulated on the assumption that the assets behind a policy are worth what the books say. If a swathe of private-credit marks turns out to be a wish rather than a price, the gap does not stay in a hedge fund where sophisticated investors knowingly took the risk; it surfaces inside the balance sheets of the institutions that promised grandmothers a fixed monthly check. That is the channel through which an opaque corner of finance becomes everybody's problem — not a dramatic bank run, but a slow realization that the safe thing was holding the risky thing all along.

The deepest problem is the one embedded in the name of this essay. For an entire cycle, private credit sold investors a number — the NAV, the smooth line, the steady mark — and that number was produced by the only party with both the information to set it and the incentive to set it high. As long as nobody had to sell, and nobody had to leave, the number could be whatever the model said. Now people are trying to sell, and trying to leave, and the defaults are arriving, and the most sophisticated firm in the business is quietly turning on the lights — and the question every holder of a placid private-credit NAV should be asking is the one the structure was built to prevent them from asking: is this number a price, or is it a wish?

For a decade, in private credit, the two were indistinguishable, and that indistinguishability was the entire product. The defaults, the gates, and the daily marks are the market's way of finally insisting on the difference. Mark to market is a discipline. Mark to model is a judgment call. And mark to myth — the smooth, serene, self-reported line that never fell because no one was permitted to test it — is the thing that is now, quarter by gated quarter, being asked to prove it was ever real.