Yet on both occasions, Dimon emphasized that JPMorgan’s moving heavily into the field that he views as so fraught with risk for others, stating in May that, “There’s a huge opportunity for this company.” In fact, Dimon recently dedicated $50 billion in the investment bank’s capital towards providing debt financing for clients doing acquisitions and other deals, effectively starting a private credit operation inside JPMorgan.

Dimon’s indeed correct in warning that if unregulated, non-bank lending grows too fast, the trend could flood the economy with easy credit—specifically, an excess of high-yield debt granted to risky borrowers on loose terms. But for the biggest part of the burgeoning private credit market, the sector dominated by the PE giants, the business isn’t primarily about taking flyers on less-than-best-in-class borrowers in exchange for fat interest payments. Instead, the Big Guys such as Apollo, Ares and KKR are pioneering a highly original strategy by extending credit they originate independently, often backed by high-earning assets from rail cars to data centers, that lock in borrowers for a number of years. In exchange for tying up that money for, say, nearly a decade, the borrowers are willing to pay a lot more in interest than if they had to get the money from a network banks via a long, expensive syndication process that required securing ratings from S&P and Fitch, facing tough covenants, and oftentimes enduring long waits for the funding.

And while those loans, based on their credit quality, are the equivalent of investment grade bonds, because of the “illiquidity premium,” they merit higher rates. And the PE giants have sundry customers with extremely long horizons—from pension funds to insurers to family offices—who don’t need the dollars for a decade or so, and are happy to set it aside for long periods in exchange for the extra yield.

Where private credit came from and how it works

Prior to the meltdown from the housing collapse in 2009, banks were eager to pile loans on their balance sheets, and held a high proportion of mortgages, auto loans, aircraft financings and other interest-earning assets versus their capital. But the Dodd-Frank legislation designed to protect depositors from bank failures such as the Washington Mutual and Wachovia disasters severely restricted the volumes of credit the banks could hold. The big lenders shifted to mostly “syndicated” financings, dividing the loans among a club of banks that then sold them off to institutions, generating fees in the process. Retail banks’ focus has shifted heavily from lending to cross-selling consumer products, wealth management, and capital markets and investment banking for corporate clients in the years since the GFC.

Into this void jumped the PE firms that had previously specialized in leveraging up private companies through LBOs, fixing them, then selling off these portfolio holdings at generally super-high returns.

So vast were the opportunities in private credit, however, that it grew into the main business at many of the players, including Apollo, accounts for the spectacular growth at Aries, and it’s become a staple for Blackstone, KKR, Carlyle and other major players. Since 2006, the cumulative investments in private credit have mushroomed 1,000%. Over the same period, the annual amounts raised by PE firms for these financings jumped from around $6 billion to $700 billion. Today, the industry’s global AUM stands at around $2 trillion, and industry experts predict the figure will reach $2.8 trillion by 2028.

Still, despite the sorcerous growth, private credit remains a relatively small corner of the debt universe. For example, the size of the U.S. corporate bond market is over 20 times that of private debt at $46 trillion. And for the CEOs of the big private equity firms, shrinking that gap represents a vast field for expansion going forward.

The companies dominating private credit aren’t banks

To be sure, the PE leaders have funds that specialize in distress debt offering extremely high yields, but also shouldering substantial risks—that, too, is part of private debt. They also have branches that finance mid-sized companies and such small operations as Burger King franchises. But here’s the big shift: They increasingly get big, steady flows of money from super-long-term investors. For example, both Apollo and KKR now own in-house insurers, and Blackstone’s forged a strategic partnership with a big carrier. The insurers that send the PE owners and partners with a constant stream of new premiums, including from annuities, a business that’s boomed with the rise interest rates that’s hugely boosted their future payouts. The firms put that money to work in high-grade corporate bonds, but also place part of it safe private credit deals that they originate in-house. The PE firms own or partner with numerous origination platforms, often bought from big banks in retreat, that specialize in different areas of asset-backed financings, including for aircraft and inventories, as well as loans on fully rented apartment complexes in areas with extremely low vacancy rates.

On these investment-grade quality credits, the firms’ funds that hold the loans, and the captive insurers whose profits go to their PE parents, typically garner between 150 and 200 basis points more than on corporate bonds of the same duration. As their surging stocks, revenues and AUM are showing, Big PE’s developed a practically new template, mostly in the last ten years: Matching ultra-reliable, long-term loans with the the investors such as endowments, pension funds and insurers, who have an extremely long horizon, and relish getting paid more for waiting.

Jamie Dimon’s right to fret about the next crisis. But the biggest swath of the private debt revolution isn’t running on big risks, it’s simply matched two parts of the market, investors that seek safety and borrowers that need to tie up capital in airplanes or data centers or apartment buildings for a long time––and are willing to pay extra for the privilege.