By Mari Hansen A few blocks east of Park Avenue is a section of Midtown Manhattan where the lobbies appear to be nearly identical. Quiet security desks, polished stone, and a logo so subtle you could pass it twice. I once spoke with a portfolio manager inside one of them on a Tuesday afternoon, and she casually described the work as if describing a dentist appointment. “We lend money,” he declared. “Just not the way banks do.” He gave a shrug. It turns out that the majority of the problems with contemporary finance can be found in that shrug.
The term “shadow banking,” which was created in 2007 by economist Paul McCulley almost as an afterthought, is no longer a specialized area of the system. It is the system, or nearly so. The industry is estimated to be worth $52 trillion worldwide, accounting for almost half of all financial assets. Since the 2008 crisis, that number has almost doubled, which is the kind of statistic that ought to cause concern but, for some reason, rarely does. Everyone in the industry seems to be aware of the numbers, but they have implicitly decided not to focus on them.
| Shadow Banking System — Key Information | Details |
|---|---|
| Sector Name | Shadow Banking / Non-Bank Financial Intermediation (NBFI) |
| Term Coined By | Economist Paul McCulley, 2007 (Jackson Hole symposium) |
| Estimated Global Size | Roughly $52 trillion in assets, nearly half of global finance |
| US Bank Loans to Shadow Banks | Surpassed $1 trillion in 2024 (Federal Reserve data) |
| Private Credit Market Size | Approximately $3 trillion and growing |
| Core Activity | Credit intermediation outside traditional banking regulation |
| Key Players | Hedge funds, money market funds, broker-dealers, private credit firms, insurance companies, pension funds |
| Main Risks | Maturity mismatch, leverage, opacity, fire-sale dynamics |
| Notable Crisis Episodes | 2008 GFC, 2022 UK LDI crisis, China property defaults |
| Oversight Body | Loose patchwork; the IMF and Financial Stability Board track but cannot regulate |
The mechanics are not particularly difficult. Shadow banks use the same strategy that commercial banks have used for centuries: they borrow short, lend long, and profit from the spread. The distinction is that they operate without the capital cushions that regulators impose on conventional lenders, without access to emergency Fed funding, and without deposit insurance. Washington tightened bank regulations after 2008, which at the time seemed reasonable. However, the riskier lending did not go away. It simply crossed the street.
It’s more difficult to see what it entered. The retired couple featured in a recent Wall Street Journal article, Tom and Laurie Hegna, were unaware that their annuities were involved in any of the following: money market vehicles, private credit funds, broker-dealers operating on repurchase agreements, and insurance-linked annuity products that covertly channel retiree savings into corporate loans. Most people don’t. Somewhere along the line, a mid-market business receives a loan that it would not have been able to obtain from JPMorgan as the pipes connect and money flows.
System defenders present a plausible argument. They contend that banks excel at making loans secured by real estate. Small businesses, cash-flow-based transactions, and borrowers who don’t fit into a credit score box are among the gaps that shadow lenders fill. The argument is that if banks were the only spigot, capitalism in 2026 simply could not function. This is partially true. What happens when the music stops is another minor issue.
An exceptionally clear preview was provided by the UK pension crisis of 2022. Of all things, pension funds—stiff, conservative pension funds—had increased their gilt exposures through the use of derivatives. After Liz Truss’s mini-budget, yields spiked, causing margin calls to cascade. Only an emergency intervention by the Bank of England stopped a near-market seizure. Outside of the industry, few people were familiar with the term “liability-driven investment.” Then everyone had, for a moment.
The fact that US bank loans to shadow banks crossed the trillion-dollar threshold in 2024, according to data from the Federal Reserve, suggests that the wall separating the regulated and unregulated halves of finance has always been more of a curtain, which is what privately worries regulators. China had to learn this lesson the hard way. Before Beijing forced a contraction, the country’s shadow sector had grown to a third of the financial system. This led to the property meltdown that is still plaguing its economy today.
It is difficult to ignore how much of this is reminiscent of 2007. The instruments are not the same. Private credit is used in place of subprime, and NBFI is used in place of SIV. The underlying structure, which is leverage based on assets that no one can accurately value, looks remarkably similar. Regulators will probably arrive late, regardless of whether the next crisis is caused by a pension shock, a corporate debt explosion, or something else that hasn’t been identified yet. Usually, they do. By then, the trillion-dollar machine will be busy reorganizing itself in another location.