When Regulators Look Away From Nonbanks, Leaders Shouldn’t

As Washington moves to make it harder to designate nonbanks as systemically important, Quirin Fleckenstein’s research suggests that, in syndicated lending, nonbanks—not banks—have been the main drivers of credit cyclicality.
On March 25, the Financial Stability Oversight Council voted to publish proposed guidance that would raise the threshold for using its nonbank designation authority and add a pre-designation “off-ramp,” giving firms or regulators time to address identified risks before any designation proceeds. That is a live regulatory debate. But it also risks keeping our attention on the wrong question. The more useful one for business leaders is simpler: when credit conditions tighten, who actually pulls back first?
For companies that depend on syndicated lending, Quirin Fleckenstein and his coauthors offer a clear answer. In their new paper, they show that during the Global Financial Crisis, it was the reduction in nonbank lending—not bank lending—that explained most of the contraction in syndicated credit. The associated employment effects were also heavily concentrated on the nonbank side: the paper estimates that between 58% and 77% of credit-induced employment losses in this market can be traced back to the exit of nonbanks.
The point matters because nonbanks are no longer peripheral players. In the syndicated loan market, their share of outstanding loans rose from 22% in 2001 to 46% in 2022. And across multiple credit cycles, the authors find that nonbank credit supply is more than three times as cyclical as bank credit supply. When aggregate credit conditions tighten, nonbank lending volumes fall more sharply, even when banks and nonbanks are lending to the same borrower at the same time within the same deal.
This is where the research becomes especially relevant for leaders. Many executives still talk about credit stress as though it were mainly a banking story: watch bank balance sheets, follow bank regulation, track bank distress. Fleckenstein’s paper complicates that instinct. In syndicated loans, banks often originate facilities that are then sold within days to nonbanks. So a company may think it is dealing with a bank-led market while remaining exposed to nonbank demand underneath it.
MORE FOR YOU
In other words, the headline lender is not always the final lender. That distinction is central to the paper. Once the authors control for banks’ dependence on nonbanks before the crisis—the share of originations distributed to nonbanks—the relationship between common measures of bank health and total loan originations during the GFC becomes statistically insignificant. In this setting, looking only at bank health can therefore overstate banks’ independent role in the credit crunch and understate the importance of nonbank withdrawal.
The findings are just as striking over time. Using the Excess Bond Premium as a measure of credit conditions, the authors show that a one-standard-deviation increase in the premium reduces nonbank loan volumes by 13.9 percentage points more than bank loan volumes when comparing facilities made to the same borrower, at the same time, within the same deal. At the aggregate level, the contrast is even more dramatic: a one-standard-deviation increase in the premium is associated with a 71.2% reduction in nonbank lending, compared with 16.9% for banks.
That does not mean the paper says all nonbanks are the same, or that it offers a sweeping diagnosis of every corner of the financial system. It does something more valuable. It isolates one major market, distinguishes carefully between bank and nonbank credit supply, and shows that the most cyclical part of that market sits on the nonbank side. For leaders, that is already enough to change the way we think about financial vulnerability.
The policy discussion in Washington gives this research a timely hook. If regulators are making it harder to label nonbanks as systemically important, then the burden of proof matters. Fleckenstein’s paper does not tell regulators exactly what to do next, and it does not claim that all nonbank activity should be treated like banking. But it does show that in one market that matters enormously for corporate finance, nonbanks have become central to both credit booms and credit contractions.
For business leaders, the lesson is practical. In a downturn, it may no longer be enough to ask whether banks are healthy or whether bank regulation is tight. The more revealing question may be who ultimately holds the credit, and how that lender behaves when stress rises. If nonbanks are the more cyclical providers of credit, then a funding structure that looks diversified on paper may prove less resilient than it seems.
That is why this is more than a finance paper for specialists. It is a reminder that leadership under uncertainty begins with seeing the system as it is, not as it used to be. The next credit shock may still pass through banks. But in syndicated lending, Fleckenstein’s evidence suggests that the sharper pullback is likely to come from elsewhere.
Nonbank Lending and Credit Cyclicality was published by the Review of Financial Studies and coauthored by Quirin Fleckenstein , Manasa Gopal , Germán Gutiérrez and Sebastian Hillenbrand